The Long-Term Effects of Investments in Early Childhood Education on Economic Development: A Synthesizing Approach of Recent Literature

The Long-Term Effects of Investments in Early Childhood Education on Economic Development: A Synthesizing Approach of Recent Literature | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Case Report The Long-Term Effects of Investments in Early Childhood Education on Economic Development: A Synthesizing Approach of Recent Literature Kaltrina Bajraktari, Blerina Çibukçiu, Bashkim Çerkini, Roberta Bajrami This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8187807/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Investment in early childhood education has long been a significant research topic due to its impact on long-term economic development. This paper presents a systematic review of the literature, analyzing 42 scientific articles to examine the long-term financial effects of investing in early childhood education. Unlike earlier reviews, this paper emphasizes the underlying mechanisms behind these effects, offering a deeper understanding to support policy development. The selection process for the literature was meticulous, guaranteeing a comprehensive overview of current academic debates on this topic. The analysis highlights economic outcomes linked to investments in ECE, such as improved education, higher labor market participation, reduced social expenditures, and enhanced overall human capital development. In addition to investments in ECE, attention is given to other influencing factors like program quality, parental involvement, and early skill development. The review also considers how these effects vary across income groups and countries. Findings indicate that investments in ECE yield substantial long-term returns at both the individual and societal levels, with benefit-cost ratios ranging from $ 4 to $ 10 for every $ 1 invested. This review offers original insights by synthesizing evidence on international differences and mechanisms of long-term returns, addressing a gap in comparative ECE economic analyses. The paper concludes with policy suggestions aimed at maximizing the economic benefits of early childhood education, especially in low- and middle-income countries. This review also aligns with the UNESCO Education 2030 Framework for Action , emphasizing that early childhood education should be regarded as a long-term public investment that advances equity, quality, and sustainable economic growth. Early Childhood Education Long-Term Impact Investment in Education Economic Development Impact Evaluation Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 1. Introduction Investments in early childhood education (ECE) are widely recognized as one of the most effective strategies for ensuring sustainable economic and social development worldwide (Heckman, 2006 ; Barnett, 2011 ). Investments made during this period are not only essential for individual development but also for building human capital that will directly impact the workforce and long-term economic growth (Campbell et al., 2014). Numerous studies have shown that children who participate in quality early childhood education programs are more likely to have better educational outcomes, more sustainable employment, and exhibit more positive behaviors throughout their lives (Heckman, 2011 ). At the policy level, many developed and developing countries have made efforts to expand access to early childhood education, investing in programs and infrastructure targeting preschool and primary school children (OECD, 2017 ). Investments in Early Childhood Education (ECE) are globally recognized as one of the most cost-effective strategies for sustainable development. According to the UNESCO Education 2030 Framework for Action (UNESCO, 2023 ), early education should be treated as a public good, integrating economic, social, and equity indicators to assess long-term impact. This global framework provides the normative foundation for analyzing ECE not only as an educational priority but also as a driver of inclusive economic growth. The long-term benefits of these investments depend heavily on the quality of the programs, teacher training, family involvement, and institutional support (Berlinski, Galiani, & Gertler, 2009 ). Furthermore, changes in the economic and cultural context affect how these investments are reflected in a country’s economic development (Belfield et al., 2015 ). Nyland, Nyland, and Maharaj ( 2009 ) support the idea that quality investments in early childhood education and equitable access to them are key factors for achieving positive long-term outcomes, especially in urban contexts and with socio-economic inequalities. An important aspect that has gained traction in the literature is the cost–benefit analysis of investments in ECE. Well-known studies such as the Perry Preschool Program and the Abecedarian Project have demonstrated significant economic returns, including reduced social assistance costs, improved public health, and increased labor income (Heckman et al., 2010 ; Campbell et al., 2014). Stuart ( 2018 ) argues that the concept of “social investment” has influenced education policies in New Zealand by presenting early education not only as a right, but as a strategic tool for economic development and social cohesion. These economic returns are driving important discussions about the allocation of resources in national budgets and influencing education policies around the world. However, the long-term effects of investing in early childhood education do not always affect all children equally. Factors such as parental education level, socio-economic status, and the quality of the school and community greatly influence how successful these investments are. A recent study conducted in Uganda confirms that higher maternal education positively influences children’s participation in stimulating activities and early childhood education programs. This indicates that the level of parental education plays an important role in children’s development during the early years. Furthermore, in developing countries, inadequate infrastructure and financial struggles often hinder the full realization of potential benefits (Berlinski et al., 2009 ). According to a study by Busemeyer et al. ( 2018 ), there is notable variation among countries in citizens’ willingness to fund education through taxes. For example, Sweden shows the smallest gap between the desire for increased spending and the willingness to pay higher taxes (61%), reflecting a strong alignment between attitudes and expected fiscal policies behavior. In contrast, in Italy, 64% of citizens express a desire for more investment in education, but only 39% are willing to accept tax increases. In France, the willingness to support education through taxes is the lowest overall (only 37%). However, citizens in countries like Italy and Spain have shown they are willing to sacrifice more than 4% of their personal income for education, which indicates a high value placed on education as a public investment. Jordan's experience reinforces the idea that early and strategic investments in children’s education not only enhance individual results but also promote sustainable social and economic growth in developing countries (Al-Hassan, 2018 ). Recent studies indicate that disparities in early development are closely connected to local socio-economic structures, which significantly influence people's educational and economic chances. Purdam et al. ( 2023 ) highlight that these inequalities have long-lasting effects on educational paths, employment, and economic integration, thereby forming a major barrier to sustainable economic growth. Consequently, early and focused investment in children’s development is not only a way to improve individual living standards but also a strategy to enhance national productivity and lessen regional disparities. While early childhood education is increasingly viewed as a strategic investment with high economic returns, this view is not without its critics. Various scholars warn against reducing early education solely to its economic role. Among them, Moss ( 2013 ) provides a thorough critique of the dominant narrative that depicts early childhood education as an investment with long-term financial gains. He contends that this neoliberal perspective is limited because it reduces education to a tool for economic productivity, overlooking its broader educational, democratic, and developmental functions. According to him, such a narrow view fails to recognize the true values of children’s early experiences, such as fostering self-agency, experimentation, and the development of their unique potential. Moss ( 2013 ) suggests that educational policies should focus on a broader vision that includes long-term social and cultural development and encourages active participation from communities and families in educational processes. Another important aspect to highlight is the connection between investments in early education and overall social progress, including reducing crime, enhancing public health, and promoting social inclusion (Heckman, 2011 ). These factors have an indirect yet significant impact on economic growth by improving the quality of life and societal stability. In this context, a comprehensive review of recent literature is necessary to clearly understand the long-term effects of investing in early education on economic development across various levels and to identify gaps in current research. This will help to orient public policies and educational practices towards a more effective and sustainable development model. As early childhood education is increasingly seen as a strategic investment with long-term impacts on individual and collective development, this article aims to review the main academic literature and international reports published over the last 20 years, focusing on empirical results and cost-benefit analyses of investments in early childhood education, and their impact on long-term economic development. Through this synthesis, key factors influencing the effectiveness of these investments and recommendations for policymakers and researchers will be highlighted. 2. Methodology 2.1. Research questions As part of the methodological framework, this study uses a systematic review of the literature to examine the long-term effects of investments in early childhood education on economic development. Three research questions guide this study: 1. What are the long-term economic effects documented in the literature due to investments in early childhood education? This question investigates the effects of investments in early childhood education on economic growth, specifically whether they are positive or negative. By analyzing these effects, this research seeks to determine which investments are most effective so that such strategies can be implemented to enhance outcomes and promote economic development. 2. What are the mechanisms that explain this relationship? This question aims to explore how early childhood education impacts economic development, including enhancing skills, increasing productivity, and decreasing social costs. 3. What are the recommendations for policymakers? This question aims to offer clear guidelines for public policies based on scientific evidence, ensuring that investments in early childhood education are more sustainable and effective. Methodological framework: PICOS The PICOS framework (Population, Intervention, Comparison, Outcomes, Study Design) was used to formulate the research question and establish the inclusion criteria for this review. This methodological approach is especially suitable for systematic reviews and helps to ensure a structured and transparent process for identifying and selecting literature. Figure 1 summarizes the main components of PICOS in this review. 2.2 Alignment with International Frameworks (UNESCO Education 2030) To ensure international comparability and methodological coherence, this study was aligned with the UNESCO Education 2030 Framework for Action (UNESCO, 2023 ). This framework positions early childhood care and education (ECCE) as a public good and a cornerstone of sustainable economic and social development. Guided by its principles, the outcome variables analyzed in this review—such as education expenditure as a percentage of GDP, the share of early childhood education in total education budgets, teacher qualification ratios, participation rates in organized learning (ages 3–5), and per-child spending efficiency—were selected to reflect UNESCO’s global indicator system. Integrating this framework into the methodological design enhances the transparency and policy relevance of the findings, ensuring that results are comparable across different national contexts and consistent with internationally recognized standards. Furthermore, aligning with the UNESCO Education 2030 vision strengthens the connection between economic evaluation and social equity, emphasizing that sustainable development in early education depends not only on financial efficiency but also on inclusiveness and quality. 2.3 Research Strategy The study uses a comprehensive set of keywords to systematically search for relevant literature in these major databases: Scopus, Web of Science, and OECD iLibrary. 1. SCOPUS: ("early childhood education" OR "ECE") AND ("investment" OR "public spending") AND ("long-term effects" OR "economic impact") AND ("economic development" OR "economic growth") Subject Area: Social Sciences, Economics, Education . 2. Web of Science TS= ("early childhood education") AND TS=("investment") AND TS=("economic development" OR "long-term impact") Timespan: 2005–2025 , Document Type: Article, Review , Research Areas: Education, Economics . 3. OECD iLibrary "Early childhood education" AND "economic development" OR "investment return" Education , Social Policy , Economic Outlook , Human Capital . The keywords used in the search strategy are presented in Table 1 . Table 1 Search strings and keywords . Search Strings ("early childhood education" OR "ECE") AND ("investment" OR "public spending") AND ("long-term effects" OR "economic impact") AND ("economic development" OR "economic growth") ("early childhood education") AND TS=("investment") AND TS= ("economic development" OR "long-term impact") "Early childhood education" AND "economic development" OR "investment return" During the search, keywords for the literature review were carefully chosen to ensure a comprehensive and targeted approach to data collection across all three databases. To expand the scope of the search, a variety of outcome-focused keywords were used, starting with terms like "early childhood education" and "early learning," and including "economic development," "long-term economic growth," and "human capital." The search was also refined with investment-related terms such as "return on investment" and "cost-benefit," providing a well-rounded perspective on the impact of long-term investments. 2.4. Inclusion and Exclusion Criteria Table 2 presents the inclusion and exclusion criteria that were applied in the selection of articles in this study. The search excluded: Table 2 Inclusion and exclusion criteria Inclusion Criteria Exclusion Criteria Peer-reviewed journal articles. Conference articles, non-peer-reviewed publications, review articles, magazine articles, theses, and notes to editors Availability of full texts. Articles not directly relate to the Long-Term Effects of Early Childhood Education Investments on Economic Development Published in the English language. Published from 2005 to 2025 2.5. Screening the Articles To avoid bias, this study used the following process. In each review round, each author assigned codes to the papers: "0” (Paper should not be included), “1” (Uncertain about inclusion), and “2" (Suitable for inclusion). The authors did this independently, unaware of each other’s choices. During a focus session, they discussed any disagreements. Figure 2 shows the PRISMA flow chart that reflects the process of selecting studies for the systematic review. A total of 374 articles were initially identified from three databases: Scopus (n = 182), Web of Science (n = 112), and OECD iLibrary (n = 80). During the preliminary filtering phase, 52 articles were excluded as duplicates, automated tools eliminated 122, and 50 were removed for other reasons. After filtering, 152 articles were initially screened, with 50 excluded. One hundred two reports were requested for further review, but five were unavailable, leading to 95 reports being evaluated for eligibility. Out of these, 30 were excluded due to lack of detailed investment analysis or economic comparison, 20 were non-empirical or non-systematic studies, and 5 had inadequate methodological quality to draw cause-and-effect conclusions. Consequently, 42 studies were included in the final review. Database Selection Scopus Scopus was selected due to its extensive coverage of interdisciplinary publications across education, economics, and social sciences. Web of Science Web of Science was chosen for its strict journal inclusion standards and focus on literature citations, which helps identify high-impact research. Indices like SSCI (Social Sciences Citation Index) and ESCI (Emerging Sources Citation Index) are important for tracking the latest trends in education and economic development literature. Analyzing citation links between studies also enables us to observe how ideas and theories have evolved. OECD iLibrary OECD iLibrary was selected for its detailed focus on education policies and economic growth. This database includes analytical reports, statistical publications, and international studies that examine the long-term effects of investments in early childhood education. The comparison of the study database is shown in Table 3 . Table 3. Comparison of three databases on the topic No. Database Area covered Data Type Access Usage in this topic 1 Scopus Interdisciplinary: education, economics Scientific articles, quotes By subscription (some free) Extensive analysis of research trends, international connections and citations 2 Web of Science Social sciences, economics Articles with impact factor, citations By subscription (some free) Qualitative and bibliometric analysis of high-impact sources 5 OECD iLibrary Educational policy & economics Analytical reports, statistics, books By subscription (some free) Main source for analysis of the impact of education policies on economic development 2.5. Research Profile The central countries with the highest number of articles related to our topic were the United States (n = 13), the United Kingdom (n = 6), and Australia (n = 3). The country of publication was determined based on the affiliation of the first author. Figure 3 displays the map shaded according to the number of papers from each country. Most articles were published in 2023 (n = 5), while in 2005, 2008, 2016, and 2020, there were no publications (n = 0). Figure 4 illustrates the number of included articles by publication year (2005–2025). Figure 5 shows the distribution of 42 articles published across various academic journals from 2005 to 2025. The highest number of publications appeared in journals such as Contemporary Issues in Early Childhood (n = 4) and Journal of Public Economics (n = 3), indicating a particular scholarly focus in these outlets. Other journals, including Science, Journal of European Social Policy, and BMC Health Services Research, contributed several papers, reflecting diverse disciplinary interests in early childhood education and social investment. The articles came from a wide range of countries, with the United States (n = 14) having the most authors affiliated with first-party institutions, followed by the United Kingdom (n = 6), Australia (n = 3), and contributions from other nations adding to the global discussion. This broad geographical and disciplinary distribution highlights the interdisciplinary nature and international significance of research on early childhood education investment. 3. Results and Discussion 3.1. ECE Investment Effects The reviewed literature offers a rich and diverse perspective on how investments in early childhood education influence economic and social development, with particular emphasis on long-term impacts. International reports and empirical studies agree that early investments are more effective than later interventions for reducing inequalities (OECD, 2025 ). The benefits include not only increased school readiness and academic achievement (Al-Hassan, 2018 ; Berlinski et al., 2009 ; Del Boca et al., 2023 ), but also direct effects on the labor market and long-term productivity (Heckman & Masterov, 2007 ; Dickens et al., 2006 ; Zheng & He, 2023 ). Several studies evaluate cost-benefit ratios to measure the economic returns of early investments. Baek et al. ( 2023 ) show that for every $ 1 invested in Vietnam, society gains more than $ 5, while Hajizadeh et al. ( 2017 ) find significant savings in public spending and improvements in quality of life. From an economic perspective, these interventions are especially effective for children at social risk or from low-income families (McCarthy, Morote, Saraçoğlu, & Karaoğlan, 2009). On the other hand, some studies offer more critical viewpoints. Adamson & Brennan ( 2013 ) and Paananen et al. ( 2015 ) point out the danger of reducing childhood solely to an economic issue, warning about the dominance of neoliberal discourses that often overlook holistic child development. These approaches emphasize the importance of democratic, social, and cultural factors that should be included in ECE policies. Even in countries with strong public support for education, like Western Europe, Busemeyer et al. ( 2017 ) note that early childhood education does not always get the same level of priority as other educational stages. Additionally, the analysis by de la Porte et al. ( 2023 ) shows that financial crises and austerity measures have negatively impacted the quality of early childhood education by reducing qualified staff and institutional support. Practically, cases such as Jordan (Al-Hassan, 2018 ), Indonesia (Kusumawardhani, 2022 ), and China (Hong & Chen, 2017 ) demonstrate that developing national policies to expand access and build capacity has yielded significant benefits. However, challenges such as regional disparities, inadequate monitoring, and uneven quality persist. Overall, these findings support the idea that investing in early education not only helps reduce inequalities but also serves as a powerful tool for developing human capital and increasing economic productivity. Approaches that combine economic analysis with social and cultural sensitivity seem more balanced and sustainable in the long run. As the critical analysis of policies in New Zealand argues, the "social investment" framework has shifted the focus from child development to the economic functions of ECEC (Stuart, 2018 ). 3.2. Investment mechanisms used in ECE Investments in early childhood education influence outcomes through a variety of complex and interconnected mechanisms, which are discussed and analyzed in existing research. According to Roopnarine et al. ( 2018 ), practices and effects of early childhood education differ significantly across various contexts, emphasizing the importance of considering cultural, political, and economic factors when assessing investments in this field. As noted by OECD ( 2025 ), the primary mechanisms include: building human capital through early skills that impact academic and career success; reducing social inequalities through universal access to quality education; increasing women's participation in the workforce via childcare; and generating economic returns, or ROI, ranging from 4 to 10 euros per euro invested. A comprehensive approach for evaluating educational policies is provided by the 3A2S model (Access, Affordability, Accountability, Sustainability, Social Justice), which has been effectively employed in China to evaluate the effectiveness and fairness of ECE systems (Hong & Chen, 2017 ). This framework assesses policy impact not only based on predefined goals but also on the actual effects on children's lives, combining economic analysis with social equity. In the US, studies like Perry Preschool (Heckman & Masterov, 2007 ) and the Abecedarian Project (Campbell et al., 2012 ; Shonkoff, 2024) show how mechanisms such as intensive early intervention, personalized learning, emotional development, and family engagement foster human capital growth and reduce crime rates. Berlinski et al. ( 2009 ) highlight mechanisms including the development of cognitive and language skills, increased discipline and motivation, and improved long-term school performance. Likewise, Baek et al. ( 2023 ) emphasize that improved cognitive skills serve as a foundation for economic success, parental empowerment, and intergenerational influence. Dickens, Sawhill, and Tebbs ( 2006 ) note that early human capital growth, where quality education enhances educational and employment outcomes, is especially important. Early education also helps address socio-economic disparities and offers high economic returns, estimated at $ 4 to $ 10 per dollar invested. Furthermore, it fosters women’s workforce participation by easing caregiving burdens. Belfield et al. ( 2006 ) demonstrate societal benefits from programs like the High/Scope Perry Preschool, including better education, reduced crime, and higher long-term earnings. The theoretical framework of Cunha et al. (2005) and Cunha, Heckman et al. ( 2006 ) highlights the importance of the interaction between cognitive and non-cognitive skills developed cumulatively from an early age, with strong self-empowering effects. Dhuey ( 2024 ) discusses policy tools such as public funding, family subsidies, support for educators, and incentives for providers to create effective and inclusive systems. Conversely, critical literature (Kamenarac, 2025 ; Campbell-Barr, 2014 ; Gibson et al., 2015 ) challenges mechanisms based on neoliberal discourses, where the child is viewed as an economic investment and the educator as a performance manager. These approaches advocate for a return to democratic models that prioritize the child and community. Zheng & He ( 2023 ) use economic modeling with VECM to demonstrate the causal relationship between investments in early childhood education (ECE) and GDP, analyzing both short- and long-term effects. Kusumawardhani ( 2022 ) employs spatial models and longitudinal data to assess indirect community effects, such as increased regional development and improved outcomes in nearby schools. Jeong et al. ( 2021 ) provide clear evidence that maternal education directly impacts children's early development, reinforcing the idea that family-focused educational interventions have multiple long-term benefits. Demma ( 2023 ) introduces an additional mechanism involving parental involvement and institutional choice, showing how communication of program values and recruitment strategies influences social composition and diversity effects. Parental choice as a key mechanism in accessing and improving the quality of ECEC, which is shaped by cultural and economic factors (Nyland et al., 2009 ), as well as local socio-economic influences that significantly affect school readiness, underscoring the importance of geographical context as a structural mechanism in early development (Purdam et al., 2023 ). 3.3. Key Recommendations from Investments and Policies in ECE According to OECD ( 2025 ), investments should focus on areas of social disadvantage to maximize the reduction of inequalities, improve the quality of educational staff, develop ECEC monitoring and evaluation systems, and support low-income families. The organization emphasizes that investing in early childhood education is not a cost but a strategy for economic and social development with long-term benefits for individuals and society. Based on the analysis using the 3A2S model, Hong and Chen ( 2017 ) recommend expanding coverage in rural and impoverished areas, using targeted subsidies for low-income families, establishing independent accountability systems, strengthening public-private partnerships, developing a sustainable financing framework, and increasing community and family involvement in providing ECE services. Heckman and Masterov ( 2007 ) argue that investments in early childhood development not only enhance individual well-being but also reduce social and economic costs by lowering unemployment, crime, and the future need for health and social services. In line with this, Al-Hassan ( 2018 ) suggests expanding access to early childhood education programs, especially in rural areas and among vulnerable groups, improving service quality by developing educators’ capacities and enhancing learning environments, and integrating ECE into national education policies through intersectoral collaboration. Baek et al. ( 2023 ) indicate that scaling up programs like “Learning Clubs” nationwide is necessary, fostering cross-sector collaboration among health, nutrition, and education, and establishing sustainable policies for the long-term development of early childhood education as a foundation for economic growth. Zheng and He ( 2023 ) recommend increasing investment in preschool education as an effective way to accelerate economic growth and improve human capital in Chongqing city. They stress the importance of careful planning to manage resources and avoid financial strain during the early stages, as well as integrating preschool education into economic development policies for sustainable, long-term growth. Dhuey ( 2024 ) emphasizes that quality should be a top priority, especially for low-income families. He advocates increasing salaries and professional development opportunities for educators and fostering intersectoral collaboration between government, service providers, and communities for successful policy implementation. According to Dickens, Sawhill, and Tebbs ( 2006 ), public policies should significantly boost investment in early childhood education, particularly in impoverished communities, focusing on both expansion and quality to maximize economic benefits. The study by Lefebvre, Merrigan, and Verstraete ( 2009 ) shows that childcare subsidies in Canada led to substantial increases in women's labor market participation, reinforcing the positive economic impact of investing in early education. They also recommend maintaining subsidies for early childhood education and childcare centers with federal and state funding and shifting strategic focus toward investing more in early life education alongside secondary and tertiary education. In conclusion, Gibson et al. ( 2015 ) urge early childhood education professionals to be aware of the dominant neoliberal discourses influencing their work, advocating for a return to democratic models that place the child and community at the center. In alignment with global policy frameworks, the findings of this review also support UNESCO’s ( 2023 ) call to view early childhood education as a strategic social investment rather than a short-term expenditure. Consistent with the Education 2030 Framework for Action , policies should prioritize equity, quality, and sustainable financing mechanisms, particularly in low- and middle-income countries. Integrating ECE investment within national development strategies could therefore strengthen both human-capital formation and long-term economic resilience, ensuring that educational reforms contribute simultaneously to economic efficiency and social justice. To provide a structured overview of the primary empirical studies included in this review, Table 4 summarizes key features of the selected research articles. This comparison table includes details about the authors, publication year, focus country, type of early childhood education investment, economic impact identified, and methodology used. It shows the variety of approaches and findings across different regions and policy settings and helps synthesize evidence on long-term economic returns from ECE investments. Table 4 Summary Table of Key Studies on ECE Investment and Economic Impact UNESCO Framework Alignment Author(s) Year Country Type of Investment Economic Impact Methodology UNESCO Dimension (Primary Focus) Heckman et al. 2010 USA Perry Preschool Program ROI up to $ 7 per $ 1 invested Cost-benefit analysis Efficiency & Quality Paananen et al. 2015 Multi-country (OECD member states) Public policy investment in early childhood education quality frameworks Indirect – the paper critiques the shift toward economic/utilitarian rationales in ECEC, framing quality as preparation for future productivity and economic outcomes Critical discourse analysis of policy documents (OECD Starting Strong I, II, III) Quality & Equity Baek et al. 2023 Vietnam National ECE programs > $ 5 societal return per $ 1 invested Cost-benefit analysis Efficiency & Equity Berlinski et al. 2009 Argentina Pre-primary education Improved primary school performance Quasi-experimental Access & Quality Zheng & He 2023 China Preschool education Increased GDP (causal link shown) Econometric modeling (VECM) Efficiency & Sustainability Dürdane Şirin Saraçoğlu & Deniz Karaoğlan 2019 Turkey Early childhood education (ECE) as human capital investment High societal return — 1 TL investment yields 6–7 TL; improved educational and labor outcomes; long-term GDP growth potential Comparative analysis, OECD/PISA/WDI data, interdisciplinary lit. review, Heckman economic model. Efficiency & Quality Porte et al. 2023 Denmark and Sweeden Public investment in Early Childhood Education and Care (ECEC), specifically in funding and regulatory quality standards No monetary value: policy changes (e.g. austerity, regulation) impacted ECEC quality and outcomes Structured comparison, RWS framework, governance policy analysis, 2000–2020 focus (post-2008 crisis). Sustainability & Quality Gibson et al. 2015 Australia Investment in early childhood education (ECE) as part of national economic development strategy ECE framed as investment for future economic productivity; no monetary impact quantified Genealogical discourse analysis (Foucauldian), policy document “New Directions” (2007). Equity & Inclusion McCarthy & Morote 2009 USA Federal investment in preschool education via Head Start funding and preschool enrollment programs (ages 3–5) Increased Head Start funding & preschool enrollment boost graduation rates; implies long-term economic gains Time-series analysis (1964–2005); Final Prediction Error; Granger causality; epidemiological lens on education. Access & Efficiency Demma R. 2022 US Social capital investment in early childhood education through socioeconomic diversity in community-based programs No monetary values provided; potential positive impacts mentioned include broader access, equity, and long-term inclusion benefits via SES-diverse ECE programs Case study, qualitative analysis, two socioeconomically diverse early education programs in Baltimore Equity & Inclusion Dickens et al. 2006 US Early childhood education (universal high-quality preschool) GDP ↑ up to $ 2.34T by 2080; preferred model: + $ 2.03T (+ $ 7,699/worker); net fiscal surplus: $ 341B Macroeconomic simulations (75 years); growth models: Mankiw-Romer-Weil, Uzawa, Lucas; sensitivity analysis. Efficiency & Sustainability Boca et al. 2023 14 European Countries Duration of ECE attendance (0–4 + years) Test scores ↑: +13–24% (reading), + 9–24% (math), + 8–22% (science); peak at 3–4 yrs ECE PISA 2015 & 2018 data; panel regressions with fixed effects; heterogeneity analysis by demographics and system type. Quality & Access Nuland Ch., et al. 2010 China Investment in human capital through early childhood education and care (ECEC) Supporting current workforce (childcare enables parental employment) Building future workforce (development of human capital in early years) Survey-based qualitative study analyzing parental decision-making and policy implications for ECEC in urban China Access & Inclusion Kamenarac O., 2025 New Zeland Public policy framing and discourse surrounding ECE (non-monetary, institutional investment) Not quantified in monetary terms; critiques economic framing of ECE as investment for future productivity Critical discourse analysis of policy documents and academic literature on ECE Equity & Quality In addition to the economic and methodological categorization, the reviewed studies were qualitatively assessed according to the UNESCO ( 2023 ) Education 2030 Framework for Action dimensions, Access, Equity and Inclusion, Quality, Efficiency, and Sustainability. Each study was mapped to its primary UNESCO dimension based on the thematic emphasis of its findings and policy implications. For example, cost–benefit or ROI-focused papers were categorized under Efficiency, while those emphasizing teacher training or program quality were aligned with Quality. Studies addressing fairness, inclusion, or regional disparities were mapped under Equity and Inclusion, and those analyzing long-term policy reforms or funding frameworks under Sustainability. This approach allowed for a more comprehensive evaluation of how ECE investment research aligns with global education and development priorities, as outlined in the UNESCO framework. 3.4. Research Gaps and Future Research Directions Although the existing literature provides a solid foundation for understanding the long-term effects of investments in early childhood education, the review of the 42 selected studies reveals several important gaps that future research needs to address. Many studies focus on economic impacts, such as increased income and employment, but pay less attention to non-economic effects that could indirectly influence economic development, like improving social cohesion, promoting democratic participation, or reducing violence and crime. Additionally, the role of educators and institutional dynamics within ECE centers has not been sufficiently examined in relation to long-term economic outcomes. Much of the literature relies on observational studies, while more rigorous approaches, such as large-scale randomized controlled trials (RCTs) or dynamic structural models that can capture the complex interactions among public policies, family behavior, and the labor market, are lacking. Additionally, many studies do not transparently report their limitations, making it difficult to generalize the findings. The research mainly focuses on high-income countries like the United States, the United Kingdom, and Australia. There is a significant lack of detailed data and analysis for low- and middle-income countries, especially in regions such as the Balkans, Central Asia, or Sub-Saharan Africa. This limits the global understanding of how investments in ECE work and emphasizes the need for contextual studies that consider local economic, cultural, and institutional factors. 4. Conclusions This literature review clearly shows that investing in early childhood education has a significant and lasting impact on economic and social development. For every dollar spent at this stage, society gains far more in income, employment, and social well-being. Achieving these outcomes requires more than just providing services; it also depends on high-quality investment, active family participation, and sustainable support from institutions. Additionally, the impact of these investments largely relies on the social and cultural contexts where they are carried out. The researchers suggest that policies should prioritize helping the most vulnerable communities, improving quality, and creating sustainable financial systems that support early childhood education. It is equally important to see early childhood education not just as an economic tool but as a space where children can develop holistically, considering the social and cultural aspects of their lives. Only with this approach can we build a fairer, stronger society and a brighter future for generations to come. Beyond these practical implications, this review also offers a methodological contribution. It contributes original analytical findings by systematically aligning the economic evaluation of ECE investments with the UNESCO ( 2023 ) Education 2030 Framework . By mapping 42 international studies to these global dimensions, the paper identifies significant research imbalances, most evidence centers on efficiency and quality, while equity and sustainability remain underexplored, offering a new framework for future comparative education research. Declarations Conflicts of Interest: The authors declare that they have no conflicts of interest. Funding: This research received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors. Author Contribution K.B. led the study design, the theoretical structuring, and the main analytical interpretation.B.Ç. developed the methodological sections, conducted the comparative analysis, and formulated the discussion and recommendations.B.Çe. supported data analysis, literature screening, and the preparation of tables/figures.R.B. contributed to the literature review, source summarization, and final manuscript checks. 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13:47:23","extension":"xml","order_by":36,"title":"","display":"","copyAsset":false,"role":"acdc-reference","size":144493,"visible":true,"origin":"","legend":"","description":"","filename":"4b9119b78c77416e92b76fd9b5ee50a51structuring.xml","url":"https://assets-eu.researchsquare.com/files/rs-8187807/v1/4882126af06a9d6143674d4f.xml"},{"id":97258469,"identity":"5a684b8b-f150-421a-a619-2b28689308f0","added_by":"auto","created_at":"2025-12-02 13:47:24","extension":"html","order_by":37,"title":"","display":"","copyAsset":false,"role":"acdc-reference","size":157569,"visible":true,"origin":"","legend":"","description":"","filename":"earlyproof.html","url":"https://assets-eu.researchsquare.com/files/rs-8187807/v1/c1f0d234ebbaaa1063baf641.html"},{"id":97367205,"identity":"02e4370d-0dac-49e9-b950-5e2fd561ec88","added_by":"auto","created_at":"2025-12-03 16:17:26","extension":"png","order_by":1,"title":"Figure 1","display":"","copyAsset":false,"role":"figure","size":187347,"visible":true,"origin":"","legend":"\u003cp\u003eFigure created by the authors based on the PICOS framework as described in Amir-Behghadami \u0026amp; Janati (2020). The PICOS framework is used to formulate the research question and guide study selection\u003c/p\u003e","description":"","filename":"1.png","url":"https://assets-eu.researchsquare.com/files/rs-8187807/v1/e51a9d466420c3663fe7efbf.png"},{"id":97258427,"identity":"72576901-7728-48ff-bc54-74ebdbced1fc","added_by":"auto","created_at":"2025-12-02 13:47:23","extension":"png","order_by":2,"title":"Figure 2","display":"","copyAsset":false,"role":"figure","size":45780,"visible":true,"origin":"","legend":"\u003cp\u003e\u003cem\u003eLiterature Selection Process. Flow diagram adapted from the PRISMA 2020 Statement (Page et al., 2020).\u003c/em\u003e\u003c/p\u003e","description":"","filename":"2.png","url":"https://assets-eu.researchsquare.com/files/rs-8187807/v1/bd7a65e8793a29e705e4a99a.png"},{"id":97367419,"identity":"3ea879d6-eb78-48cb-96c4-fb8e5f17ad95","added_by":"auto","created_at":"2025-12-03 16:18:29","extension":"png","order_by":3,"title":"Figure 3","display":"","copyAsset":false,"role":"figure","size":39567,"visible":true,"origin":"","legend":"\u003cp\u003e\u003cem\u003eNumber of articles published per country\u003c/em\u003e\u003c/p\u003e","description":"","filename":"3.png","url":"https://assets-eu.researchsquare.com/files/rs-8187807/v1/c671662a0983c3c7d95b36e8.png"},{"id":97366690,"identity":"4aa4f366-0352-4fc2-b5c1-a752b2ef03b4","added_by":"auto","created_at":"2025-12-03 15:59:14","extension":"png","order_by":4,"title":"Figure 4","display":"","copyAsset":false,"role":"figure","size":13655,"visible":true,"origin":"","legend":"\u003cp\u003e\u003cem\u003eNumber of articles published per year\u003c/em\u003e\u003c/p\u003e","description":"","filename":"4.png","url":"https://assets-eu.researchsquare.com/files/rs-8187807/v1/ea0191b887f54db8a3e92741.png"},{"id":97366755,"identity":"7ff18653-dcce-482b-b12a-c984730c1527","added_by":"auto","created_at":"2025-12-03 16:06:57","extension":"png","order_by":5,"title":"Figure 5","display":"","copyAsset":false,"role":"figure","size":33342,"visible":true,"origin":"","legend":"\u003cp\u003e\u003cem\u003eNumber of articles published in each journal\u003c/em\u003e\u003c/p\u003e","description":"","filename":"5.png","url":"https://assets-eu.researchsquare.com/files/rs-8187807/v1/72f9512dc749a5fdde038274.png"},{"id":97367001,"identity":"b7761343-8877-49ad-8343-14e02a97195a","added_by":"auto","created_at":"2025-12-03 16:15:24","extension":"png","order_by":6,"title":"Figure 6","display":"","copyAsset":false,"role":"figure","size":501447,"visible":true,"origin":"","legend":"\u003cp\u003e\u003cem\u003eWord Cloud for article abstracts\u003c/em\u003e\u003c/p\u003e","description":"","filename":"6.png","url":"https://assets-eu.researchsquare.com/files/rs-8187807/v1/3a767da6e7d90d2255a667af.png"},{"id":97367154,"identity":"00cbec0a-2423-46c1-9ebc-1f9d19313735","added_by":"auto","created_at":"2025-12-03 16:17:12","extension":"png","order_by":7,"title":"Figure 7","display":"","copyAsset":false,"role":"figure","size":449641,"visible":true,"origin":"","legend":"\u003cp\u003e\u003cem\u003eWord Cloud for ECE Investment Effects\u003c/em\u003e\u003c/p\u003e","description":"","filename":"7.png","url":"https://assets-eu.researchsquare.com/files/rs-8187807/v1/ecc0e5eff0712bfdfc822b79.png"},{"id":97258440,"identity":"4a959a5e-a73f-4472-b0da-3bee17873912","added_by":"auto","created_at":"2025-12-02 13:47:23","extension":"png","order_by":8,"title":"Figure 8","display":"","copyAsset":false,"role":"figure","size":479391,"visible":true,"origin":"","legend":"\u003cp\u003e\u003cem\u003eWord Cloud for Investment mechanisms used in ECE\u003c/em\u003e\u003c/p\u003e","description":"","filename":"8.png","url":"https://assets-eu.researchsquare.com/files/rs-8187807/v1/f62ca25363c2a4c6a7cbf64f.png"},{"id":97367097,"identity":"f69c5e47-4a43-4d10-8176-549151239522","added_by":"auto","created_at":"2025-12-03 16:16:25","extension":"png","order_by":9,"title":"Figure 9","display":"","copyAsset":false,"role":"figure","size":457746,"visible":true,"origin":"","legend":"\u003cp\u003e\u003cem\u003eWord Cloud for Key Recommendations from Investments and Policies in ECE\u003c/em\u003e\u003c/p\u003e","description":"","filename":"9.png","url":"https://assets-eu.researchsquare.com/files/rs-8187807/v1/8086a9dc319bae4baab56290.png"},{"id":101810168,"identity":"3e968dff-bfd8-445e-9e4b-473b3141cd20","added_by":"auto","created_at":"2026-02-03 21:24:26","extension":"pdf","order_by":0,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":2808876,"visible":true,"origin":"","legend":"","description":"","filename":"manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-8187807/v1/0d3539a2-e4f5-47e9-bd07-f2b59877770e.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"The Long-Term Effects of Investments in Early Childhood Education on Economic Development: A Synthesizing Approach of Recent Literature","fulltext":[{"header":"1. Introduction","content":"\u003cp\u003eInvestments in early childhood education (ECE) are widely recognized as one of the most effective strategies for ensuring sustainable economic and social development worldwide (Heckman, \u003cspan citationid=\"CR22\" class=\"CitationRef\"\u003e2006\u003c/span\u003e; Barnett, \u003cspan citationid=\"CR5\" class=\"CitationRef\"\u003e2011\u003c/span\u003e). Investments made during this period are not only essential for individual development but also for building human capital that will directly impact the workforce and long-term economic growth (Campbell et al., 2014). Numerous studies have shown that children who participate in quality early childhood education programs are more likely to have better educational outcomes, more sustainable employment, and exhibit more positive behaviors throughout their lives (Heckman, \u003cspan citationid=\"CR23\" class=\"CitationRef\"\u003e2011\u003c/span\u003e). At the policy level, many developed and developing countries have made efforts to expand access to early childhood education, investing in programs and infrastructure targeting preschool and primary school children (OECD, \u003cspan citationid=\"CR34\" class=\"CitationRef\"\u003e2017\u003c/span\u003e). Investments in Early Childhood Education (ECE) are globally recognized as one of the most cost-effective strategies for sustainable development. According to the UNESCO \u003cem\u003eEducation 2030 Framework for Action\u003c/em\u003e (UNESCO, \u003cspan citationid=\"CR43\" class=\"CitationRef\"\u003e2023\u003c/span\u003e), early education should be treated as a public good, integrating economic, social, and equity indicators to assess long-term impact. This global framework provides the normative foundation for analyzing ECE not only as an educational priority but also as a driver of inclusive economic growth.\u003c/p\u003e\u003cp\u003eThe long-term benefits of these investments depend heavily on the quality of the programs, teacher training, family involvement, and institutional support (Berlinski, Galiani, \u0026amp; Gertler, \u003cspan citationid=\"CR9\" class=\"CitationRef\"\u003e2009\u003c/span\u003e). Furthermore, changes in the economic and cultural context affect how these investments are reflected in a country\u0026rsquo;s economic development (Belfield et al., \u003cspan citationid=\"CR7\" class=\"CitationRef\"\u003e2015\u003c/span\u003e). Nyland, Nyland, and Maharaj (\u003cspan citationid=\"CR33\" class=\"CitationRef\"\u003e2009\u003c/span\u003e) support the idea that quality investments in early childhood education and equitable access to them are key factors for achieving positive long-term outcomes, especially in urban contexts and with socio-economic inequalities. An important aspect that has gained traction in the literature is the cost\u0026ndash;benefit analysis of investments in ECE. Well-known studies such as the Perry Preschool Program and the Abecedarian Project have demonstrated significant economic returns, including reduced social assistance costs, improved public health, and increased labor income (Heckman et al., \u003cspan citationid=\"CR24\" class=\"CitationRef\"\u003e2010\u003c/span\u003e; Campbell et al., 2014).\u003c/p\u003e\u003cp\u003eStuart (\u003cspan citationid=\"CR42\" class=\"CitationRef\"\u003e2018\u003c/span\u003e) argues that the concept of \u0026ldquo;social investment\u0026rdquo; has influenced education policies in New Zealand by presenting early education not only as a right, but as a strategic tool for economic development and social cohesion. These economic returns are driving important discussions about the allocation of resources in national budgets and influencing education policies around the world. However, the long-term effects of investing in early childhood education do not always affect all children equally. Factors such as parental education level, socio-economic status, and the quality of the school and community greatly influence how successful these investments are. A recent study conducted in Uganda confirms that higher maternal education positively influences children\u0026rsquo;s participation in stimulating activities and early childhood education programs. This indicates that the level of parental education plays an important role in children\u0026rsquo;s development during the early years. Furthermore, in developing countries, inadequate infrastructure and financial struggles often hinder the full realization of potential benefits (Berlinski et al., \u003cspan citationid=\"CR9\" class=\"CitationRef\"\u003e2009\u003c/span\u003e).\u003c/p\u003e\u003cp\u003eAccording to a study by Busemeyer et al. (\u003cspan citationid=\"CR10\" class=\"CitationRef\"\u003e2018\u003c/span\u003e), there is notable variation among countries in citizens\u0026rsquo; willingness to fund education through taxes. For example, Sweden shows the smallest gap between the desire for increased spending and the willingness to pay higher taxes (61%), reflecting a strong alignment between attitudes and expected fiscal policies behavior. In contrast, in Italy, 64% of citizens express a desire for more investment in education, but only 39% are willing to accept tax increases. In France, the willingness to support education through taxes is the lowest overall (only 37%). However, citizens in countries like Italy and Spain have shown they are willing to sacrifice more than 4% of their personal income for education, which indicates a high value placed on education as a public investment.\u003c/p\u003e\u003cp\u003eJordan's experience reinforces the idea that early and strategic investments in children\u0026rsquo;s education not only enhance individual results but also promote sustainable social and economic growth in developing countries (Al-Hassan, \u003cspan citationid=\"CR2\" class=\"CitationRef\"\u003e2018\u003c/span\u003e). Recent studies indicate that disparities in early development are closely connected to local socio-economic structures, which significantly influence people's educational and economic chances. Purdam et al. (\u003cspan citationid=\"CR38\" class=\"CitationRef\"\u003e2023\u003c/span\u003e) highlight that these inequalities have long-lasting effects on educational paths, employment, and economic integration, thereby forming a major barrier to sustainable economic growth. Consequently, early and focused investment in children\u0026rsquo;s development is not only a way to improve individual living standards but also a strategy to enhance national productivity and lessen regional disparities. While early childhood education is increasingly viewed as a strategic investment with high economic returns, this view is not without its critics. Various scholars warn against reducing early education solely to its economic role. Among them, Moss (\u003cspan citationid=\"CR32\" class=\"CitationRef\"\u003e2013\u003c/span\u003e) provides a thorough critique of the dominant narrative that depicts early childhood education as an investment with long-term financial gains. He contends that this neoliberal perspective is limited because it reduces education to a tool for economic productivity, overlooking its broader educational, democratic, and developmental functions. According to him, such a narrow view fails to recognize the true values of children\u0026rsquo;s early experiences, such as fostering self-agency, experimentation, and the development of their unique potential. Moss (\u003cspan citationid=\"CR32\" class=\"CitationRef\"\u003e2013\u003c/span\u003e) suggests that educational policies should focus on a broader vision that includes long-term social and cultural development and encourages active participation from communities and families in educational processes.\u003c/p\u003e\u003cp\u003eAnother important aspect to highlight is the connection between investments in early education and overall social progress, including reducing crime, enhancing public health, and promoting social inclusion (Heckman, \u003cspan citationid=\"CR23\" class=\"CitationRef\"\u003e2011\u003c/span\u003e). These factors have an indirect yet significant impact on economic growth by improving the quality of life and societal stability. In this context, a comprehensive review of recent literature is necessary to clearly understand the long-term effects of investing in early education on economic development across various levels and to identify gaps in current research. This will help to orient public policies and educational practices towards a more effective and sustainable development model. As early childhood education is increasingly seen as a strategic investment with long-term impacts on individual and collective development, this article aims to review the main academic literature and international reports published over the last 20 years, focusing on empirical results and cost-benefit analyses of investments in early childhood education, and their impact on long-term economic development. Through this synthesis, key factors influencing the effectiveness of these investments and recommendations for policymakers and researchers will be highlighted.\u003c/p\u003e"},{"header":"2. Methodology","content":"\u003cdiv id=\"Sec3\" class=\"Section2\"\u003e\n \u003ch2\u003e2.1. Research questions\u003c/h2\u003e\n \u003cp\u003eAs part of the methodological framework, this study uses a systematic review of the literature to examine the long-term effects of investments in early childhood education on economic development. Three research questions guide this study:\u003c/p\u003e\u003cspan\u003e\n \u003cp\u003e\u003cem\u003e1. What are the long-term economic effects documented in the literature due to investments in early childhood education?\u003c/em\u003e\u003c/p\u003e\n \u003c/span\u003e\n \u003cp\u003eThis question investigates the effects of investments in early childhood education on economic growth, specifically whether they are positive or negative. By analyzing these effects, this research seeks to determine which investments are most effective so that such strategies can be implemented to enhance outcomes and promote economic development.\u003c/p\u003e\n\u003c/div\u003e\n\u003ch3\u003e2. What are the mechanisms that explain this relationship?\u003c/h3\u003e\n\u003cp\u003eThis question aims to explore how early childhood education impacts economic development, including enhancing skills, increasing productivity, and decreasing social costs.\u003c/p\u003e\n\u003ch3\u003e3. What are the recommendations for policymakers?\u003c/h3\u003e\n\u003cp\u003eThis question aims to offer clear guidelines for public policies based on scientific evidence, ensuring that investments in early childhood education are more sustainable and effective.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eMethodological framework: PICOS\u003c/strong\u003e\u003c/p\u003e\n\u003cp\u003eThe PICOS framework (Population, Intervention, Comparison, Outcomes, Study Design) was used to formulate the research question and establish the inclusion criteria for this review. This methodological approach is especially suitable for systematic reviews and helps to ensure a structured and transparent process for identifying and selecting literature. Figure \u003cspan class=\"InternalRef\"\u003e1\u003c/span\u003e summarizes the main components of PICOS in this review.\u003c/p\u003e\n\u003cdiv id=\"Sec6\" class=\"Section2\"\u003e\n \u003ch2\u003e2.2 Alignment with International Frameworks (UNESCO Education 2030)\u003c/h2\u003e\n \u003cp\u003eTo ensure international comparability and methodological coherence, this study was aligned with the UNESCO \u003cem\u003eEducation 2030 Framework for Action\u003c/em\u003e (UNESCO, \u003cspan class=\"CitationRef\"\u003e2023\u003c/span\u003e). This framework positions early childhood care and education (ECCE) as a public good and a cornerstone of sustainable economic and social development. Guided by its principles, the outcome variables analyzed in this review\u0026mdash;such as education expenditure as a percentage of GDP, the share of early childhood education in total education budgets, teacher qualification ratios, participation rates in organized learning (ages 3\u0026ndash;5), and per-child spending efficiency\u0026mdash;were selected to reflect UNESCO\u0026rsquo;s global indicator system.\u003c/p\u003e\n \u003cp\u003eIntegrating this framework into the methodological design enhances the transparency and policy relevance of the findings, ensuring that results are comparable across different national contexts and consistent with internationally recognized standards. Furthermore, aligning with the UNESCO Education 2030 vision strengthens the connection between economic evaluation and social equity, emphasizing that sustainable development in early education depends not only on financial efficiency but also on inclusiveness and quality.\u003c/p\u003e\n\u003c/div\u003e\n\u003cdiv id=\"Sec7\" class=\"Section2\"\u003e\n \u003ch2\u003e2.3 Research Strategy\u003c/h2\u003e\n \u003cp\u003eThe study uses a comprehensive set of keywords to systematically search for relevant literature in these major databases: Scopus, Web of Science, and OECD iLibrary.\u003c/p\u003e\u003cspan\u003e\n \u003cp\u003e1. SCOPUS: (\u0026quot;early childhood education\u0026quot; OR \u0026quot;ECE\u0026quot;) AND (\u0026quot;investment\u0026quot; OR \u0026quot;public spending\u0026quot;) AND (\u0026quot;long-term effects\u0026quot; OR \u0026quot;economic impact\u0026quot;) AND (\u0026quot;economic development\u0026quot; OR \u0026quot;economic growth\u0026quot;)\u003c/p\u003e\n \u003c/span\u003e\n \u003cp\u003e\u003cem\u003eSubject Area: Social Sciences, Economics, Education\u003c/em\u003e.\u003c/p\u003e\n\u003c/div\u003e\n\u003ch3\u003e2. Web of Science\u003c/h3\u003e\n\u003cdiv class=\"BlockQuote\"\u003e\n \u003cp\u003eTS= (\u0026quot;early childhood education\u0026quot;) AND TS=(\u0026quot;investment\u0026quot;) AND TS=(\u0026quot;economic development\u0026quot; OR \u0026quot;long-term impact\u0026quot;)\u003c/p\u003e\n\u003c/div\u003e\n\u003cp\u003e\u003cem\u003eTimespan: 2005\u0026ndash;2025\u003c/em\u003e, \u003cem\u003eDocument Type: Article, Review\u003c/em\u003e, \u003cem\u003eResearch Areas: Education, Economics\u003c/em\u003e.\u003c/p\u003e\n\u003ch3\u003e3. OECD iLibrary\u003c/h3\u003e\n\u003cdiv class=\"BlockQuote\"\u003e\n \u003cp\u003e\u0026quot;Early childhood education\u0026quot; AND \u0026quot;economic development\u0026quot; OR \u0026quot;investment return\u0026quot;\u003c/p\u003e\n \u003cp\u003e\u003cem\u003eEducation\u003c/em\u003e, \u003cem\u003eSocial Policy\u003c/em\u003e, \u003cem\u003eEconomic Outlook\u003c/em\u003e, \u003cem\u003eHuman Capital\u003c/em\u003e.\u003c/p\u003e\n\u003c/div\u003e\n\u003cp\u003eThe keywords used in the search strategy are presented in Table\u0026nbsp;\u003cspan class=\"InternalRef\"\u003e1\u003c/span\u003e.\u003c/p\u003e\n\u003cdiv class=\"gridtable\"\u003e\n \u003ctable id=\"Tab1\" border=\"1\"\u003e\n \u003ccaption language=\"En\"\u003e\n \u003cdiv class=\"CaptionNumber\"\u003eTable 1\u003c/div\u003e\n \u003cdiv class=\"CaptionContent\"\u003e\n \u003cp\u003e\u003cem\u003eSearch strings and keywords\u003c/em\u003e.\u003c/p\u003e\n \u003c/div\u003e\n \u003c/caption\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth align=\"left\"\u003e\n \u003cp\u003eSearch Strings\u003c/p\u003e\n \u003c/th\u003e\n \u003c/tr\u003e\n \u003c/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003e(\u0026quot;early childhood education\u0026quot; OR \u0026quot;ECE\u0026quot;) AND (\u0026quot;investment\u0026quot; OR \u0026quot;public spending\u0026quot;) AND (\u0026quot;long-term effects\u0026quot; OR \u0026quot;economic impact\u0026quot;) AND (\u0026quot;economic development\u0026quot; OR \u0026quot;economic growth\u0026quot;)\u003c/p\u003e\n \u003cp\u003e(\u0026quot;early childhood education\u0026quot;) AND TS=(\u0026quot;investment\u0026quot;) AND TS= (\u0026quot;economic development\u0026quot; OR \u0026quot;long-term impact\u0026quot;)\u003c/p\u003e\n \u003cp\u003e\u0026quot;Early childhood education\u0026quot; AND \u0026quot;economic development\u0026quot; OR \u0026quot;investment return\u0026quot;\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003c/tbody\u003e\n \u003c/table\u003e\n\u003c/div\u003e\n\u003cp\u003eDuring the search, keywords for the literature review were carefully chosen to ensure a comprehensive and targeted approach to data collection across all three databases. To expand the scope of the search, a variety of outcome-focused keywords were used, starting with terms like \u0026quot;early childhood education\u0026quot; and \u0026quot;early learning,\u0026quot; and including \u0026quot;economic development,\u0026quot; \u0026quot;long-term economic growth,\u0026quot; and \u0026quot;human capital.\u0026quot; The search was also refined with investment-related terms such as \u0026quot;return on investment\u0026quot; and \u0026quot;cost-benefit,\u0026quot; providing a well-rounded perspective on the impact of long-term investments.\u003c/p\u003e\n\u003cdiv id=\"Sec10\" class=\"Section2\"\u003e\n \u003ch2\u003e2.4. Inclusion and Exclusion Criteria\u003c/h2\u003e\n \u003cp\u003eTable\u0026nbsp;\u003cspan class=\"InternalRef\"\u003e2\u003c/span\u003e presents the inclusion and exclusion criteria that were applied in the selection of articles in this study. The search excluded:\u003c/p\u003e\n \u003cdiv class=\"gridtable\"\u003e\n \u003ctable id=\"Tab2\" border=\"1\"\u003e\n \u003ccaption language=\"En\"\u003e\n \u003cdiv class=\"CaptionNumber\"\u003eTable 2\u003c/div\u003e\n \u003cdiv class=\"CaptionContent\"\u003e\n \u003cp\u003e\u003cem\u003eInclusion and exclusion criteria\u003c/em\u003e\u003c/p\u003e\n \u003c/div\u003e\n \u003c/caption\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth align=\"left\"\u003e\n \u003cp\u003eInclusion Criteria\u003c/p\u003e\n \u003c/th\u003e\n \u003cth align=\"left\"\u003e\n \u003cp\u003eExclusion Criteria\u003c/p\u003e\n \u003c/th\u003e\n \u003c/tr\u003e\n \u003c/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003ePeer-reviewed journal articles.\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003eConference articles, non-peer-reviewed publications, review articles, magazine articles, theses, and notes to editors\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003eAvailability of full texts.\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003eArticles not directly relate to the Long-Term Effects of Early Childhood Education Investments on Economic Development\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003ePublished in the English language.\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"left\"\u003e\u0026nbsp;\u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003ePublished from 2005 to 2025\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"left\"\u003e\u0026nbsp;\u003c/td\u003e\n \u003c/tr\u003e\n \u003c/tbody\u003e\n \u003c/table\u003e\n \u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv id=\"Sec11\" class=\"Section2\"\u003e\n \u003ch2\u003e2.5. Screening the Articles\u003c/h2\u003e\n \u003cp\u003eTo avoid bias, this study used the following process. In each review round, each author assigned codes to the papers: \u0026quot;0\u0026rdquo; (Paper should not be included), \u0026ldquo;1\u0026rdquo; (Uncertain about inclusion), and \u0026ldquo;2\u0026quot; (Suitable for inclusion). The authors did this independently, unaware of each other\u0026rsquo;s choices. During a focus session, they discussed any disagreements.\u003c/p\u003e\n \u003cp\u003eFigure \u003cspan class=\"InternalRef\"\u003e2\u003c/span\u003e shows the PRISMA flow chart that reflects the process of selecting studies for the systematic review. A total of 374 articles were initially identified from three databases: Scopus (n\u0026thinsp;=\u0026thinsp;182), Web of Science (n\u0026thinsp;=\u0026thinsp;112), and OECD iLibrary (n\u0026thinsp;=\u0026thinsp;80). During the preliminary filtering phase, 52 articles were excluded as duplicates, automated tools eliminated 122, and 50 were removed for other reasons. After filtering, 152 articles were initially screened, with 50 excluded. One hundred two reports were requested for further review, but five were unavailable, leading to 95 reports being evaluated for eligibility. Out of these, 30 were excluded due to lack of detailed investment analysis or economic comparison, 20 were non-empirical or non-systematic studies, and 5 had inadequate methodological quality to draw cause-and-effect conclusions. Consequently, 42 studies were included in the final review.\u003c/p\u003e\n \u003cp\u003e\u003cstrong\u003eDatabase Selection\u003c/strong\u003e\u003c/p\u003e\n \u003cp\u003e\u003cstrong\u003eScopus\u003c/strong\u003e\u003c/p\u003e\n \u003cp\u003eScopus was selected due to its extensive coverage of interdisciplinary publications across education, economics, and social sciences.\u003c/p\u003e\n \u003cp\u003e\u003cstrong\u003eWeb of Science\u003c/strong\u003e\u003c/p\u003e\n \u003cp\u003eWeb of Science was chosen for its strict journal inclusion standards and focus on literature citations, which helps identify high-impact research. Indices like SSCI (Social Sciences Citation Index) and ESCI (Emerging Sources Citation Index) are important for tracking the latest trends in education and economic development literature. Analyzing citation links between studies also enables us to observe how ideas and theories have evolved.\u003c/p\u003e\n \u003cp\u003e\u003cstrong\u003eOECD iLibrary\u003c/strong\u003e\u003c/p\u003e\n \u003cp\u003eOECD iLibrary was selected for its detailed focus on education policies and economic growth. This database includes analytical reports, statistical publications, and international studies that examine the long-term effects of investments in early childhood education. The comparison of the study database is shown in Table\u0026nbsp;\u003cspan class=\"InternalRef\"\u003e3\u003c/span\u003e.\u003c/p\u003e\n \u003cdiv class=\"gridtable\"\u003e\n \u003cdiv align=\"left\" class=\"colspec\"\u003e\u003cstrong\u003eTable 3.\u003c/strong\u003e \u003cem\u003eComparison of three databases on the topic\u003c/em\u003e\u003c/div\u003e\n \u003ctable id=\"Taba\" border=\"1\"\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth align=\"left\"\u003e\n \u003cp\u003eNo.\u003c/p\u003e\n \u003c/th\u003e\n \u003cth align=\"left\"\u003e\n \u003cp\u003eDatabase\u003c/p\u003e\n \u003c/th\u003e\n \u003cth align=\"left\"\u003e\n \u003cp\u003eArea covered\u003c/p\u003e\n \u003c/th\u003e\n \u003cth align=\"left\"\u003e\n \u003cp\u003eData Type\u003c/p\u003e\n \u003c/th\u003e\n \u003cth align=\"left\"\u003e\n \u003cp\u003eAccess\u003c/p\u003e\n \u003c/th\u003e\n \u003cth align=\"left\"\u003e\n \u003cp\u003eUsage in this topic\u003c/p\u003e\n \u003c/th\u003e\n \u003c/tr\u003e\n \u003c/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003e1\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003e\u003cstrong\u003eScopus\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003eInterdisciplinary: education, economics\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003eScientific articles, quotes\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003eBy subscription (some free)\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003eExtensive analysis of research trends, international connections and citations\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003e2\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003e\u003cstrong\u003eWeb of Science\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003eSocial sciences, economics\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003eArticles with impact factor, citations\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003eBy subscription (some free)\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003eQualitative and bibliometric analysis of high-impact sources\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003ctr\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003e5\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003e\u003cstrong\u003eOECD iLibrary\u003c/strong\u003e\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003eEducational policy \u0026amp; economics\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003eAnalytical reports, statistics, books\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003eBy subscription (some free)\u003c/p\u003e\n \u003c/td\u003e\n \u003ctd align=\"left\"\u003e\n \u003cp\u003eMain source for analysis of the impact of education policies on economic development\u003c/p\u003e\n \u003c/td\u003e\n \u003c/tr\u003e\n \u003c/tbody\u003e\n \u003c/table\u003e\n \u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv id=\"Sec12\" class=\"Section2\"\u003e\n \u003ch2\u003e2.5. Research Profile\u003c/h2\u003e\n \u003cp\u003eThe central countries with the highest number of articles related to our topic were the United States (n\u0026thinsp;=\u0026thinsp;13), the United Kingdom (n\u0026thinsp;=\u0026thinsp;6), and Australia (n\u0026thinsp;=\u0026thinsp;3). The country of publication was determined based on the affiliation of the first author. Figure \u003cspan class=\"InternalRef\"\u003e3\u003c/span\u003e displays the map shaded according to the number of papers from each country. Most articles were published in 2023 (n\u0026thinsp;=\u0026thinsp;5), while in 2005, 2008, 2016, and 2020, there were no publications (n\u0026thinsp;=\u0026thinsp;0). Figure \u003cspan class=\"InternalRef\"\u003e4\u003c/span\u003e illustrates the number of included articles by publication year (2005\u0026ndash;2025).\u003c/p\u003e\n \u003cp\u003eFigure \u003cspan class=\"InternalRef\"\u003e5\u003c/span\u003e shows the distribution of 42 articles published across various academic journals from 2005 to 2025. The highest number of publications appeared in journals such as Contemporary Issues in Early Childhood (n\u0026thinsp;=\u0026thinsp;4) and Journal of Public Economics (n\u0026thinsp;=\u0026thinsp;3), indicating a particular scholarly focus in these outlets. Other journals, including Science, Journal of European Social Policy, and BMC Health Services Research, contributed several papers, reflecting diverse disciplinary interests in early childhood education and social investment. The articles came from a wide range of countries, with the United States (n\u0026thinsp;=\u0026thinsp;14) having the most authors affiliated with first-party institutions, followed by the United Kingdom (n\u0026thinsp;=\u0026thinsp;6), Australia (n\u0026thinsp;=\u0026thinsp;3), and contributions from other nations adding to the global discussion. This broad geographical and disciplinary distribution highlights the interdisciplinary nature and international significance of research on early childhood education investment.\u003c/p\u003e\n\u003c/div\u003e"},{"header":"3. Results and Discussion","content":"\u003cdiv id=\"Sec14\" class=\"Section2\"\u003e\u003ch2\u003e3.1. ECE Investment Effects\u003c/h2\u003e\u003cp\u003eThe reviewed literature offers a rich and diverse perspective on how investments in early childhood education influence economic and social development, with particular emphasis on long-term impacts. International reports and empirical studies agree that early investments are more effective than later interventions for reducing inequalities (OECD, \u003cspan citationid=\"CR35\" class=\"CitationRef\"\u003e2025\u003c/span\u003e). The benefits include not only increased school readiness and academic achievement (Al-Hassan, \u003cspan citationid=\"CR2\" class=\"CitationRef\"\u003e2018\u003c/span\u003e; Berlinski et al., \u003cspan citationid=\"CR9\" class=\"CitationRef\"\u003e2009\u003c/span\u003e; Del Boca et al., \u003cspan citationid=\"CR16\" class=\"CitationRef\"\u003e2023\u003c/span\u003e), but also direct effects on the labor market and long-term productivity (Heckman \u0026amp; Masterov, \u003cspan citationid=\"CR25\" class=\"CitationRef\"\u003e2007\u003c/span\u003e; Dickens et al., \u003cspan citationid=\"CR19\" class=\"CitationRef\"\u003e2006\u003c/span\u003e; Zheng \u0026amp; He, \u003cspan citationid=\"CR44\" class=\"CitationRef\"\u003e2023\u003c/span\u003e). Several studies evaluate cost-benefit ratios to measure the economic returns of early investments. Baek et al. (\u003cspan citationid=\"CR4\" class=\"CitationRef\"\u003e2023\u003c/span\u003e) show that for every \u003cspan\u003e$\u003c/span\u003e1 invested in Vietnam, society gains more than \u003cspan\u003e$\u003c/span\u003e5, while Hajizadeh et al. (\u003cspan citationid=\"CR21\" class=\"CitationRef\"\u003e2017\u003c/span\u003e) find significant savings in public spending and improvements in quality of life. From an economic perspective, these interventions are especially effective for children at social risk or from low-income families (McCarthy, Morote, Sara\u0026ccedil;oğlu, \u0026amp; Karaoğlan, 2009).\u003c/p\u003e\u003cp\u003eOn the other hand, some studies offer more critical viewpoints. Adamson \u0026amp; Brennan (\u003cspan citationid=\"CR1\" class=\"CitationRef\"\u003e2013\u003c/span\u003e) and Paananen et al. (\u003cspan citationid=\"CR36\" class=\"CitationRef\"\u003e2015\u003c/span\u003e) point out the danger of reducing childhood solely to an economic issue, warning about the dominance of neoliberal discourses that often overlook holistic child development. These approaches emphasize the importance of democratic, social, and cultural factors that should be included in ECE policies. Even in countries with strong public support for education, like Western Europe, Busemeyer et al. (\u003cspan citationid=\"CR11\" class=\"CitationRef\"\u003e2017\u003c/span\u003e) note that early childhood education does not always get the same level of priority as other educational stages. Additionally, the analysis by de la Porte et al. (\u003cspan citationid=\"CR15\" class=\"CitationRef\"\u003e2023\u003c/span\u003e) shows that financial crises and austerity measures have negatively impacted the quality of early childhood education by reducing qualified staff and institutional support. Practically, cases such as Jordan (Al-Hassan, \u003cspan citationid=\"CR2\" class=\"CitationRef\"\u003e2018\u003c/span\u003e), Indonesia (Kusumawardhani, \u003cspan citationid=\"CR29\" class=\"CitationRef\"\u003e2022\u003c/span\u003e), and China (Hong \u0026amp; Chen, \u003cspan citationid=\"CR26\" class=\"CitationRef\"\u003e2017\u003c/span\u003e) demonstrate that developing national policies to expand access and build capacity has yielded significant benefits. However, challenges such as regional disparities, inadequate monitoring, and uneven quality persist.\u003c/p\u003e\u003cp\u003eOverall, these findings support the idea that investing in early education not only helps reduce inequalities but also serves as a powerful tool for developing human capital and increasing economic productivity. Approaches that combine economic analysis with social and cultural sensitivity seem more balanced and sustainable in the long run. As the critical analysis of policies in New Zealand argues, the \"social investment\" framework has shifted the focus from child development to the economic functions of ECEC (Stuart, \u003cspan citationid=\"CR42\" class=\"CitationRef\"\u003e2018\u003c/span\u003e).\u003c/p\u003e\u003c/div\u003e\u003cdiv id=\"Sec15\" class=\"Section2\"\u003e\u003ch2\u003e3.2. Investment mechanisms used in ECE\u003c/h2\u003e\u003cp\u003eInvestments in early childhood education influence outcomes through a variety of complex and interconnected mechanisms, which are discussed and analyzed in existing research. According to Roopnarine et al. (\u003cspan citationid=\"CR39\" class=\"CitationRef\"\u003e2018\u003c/span\u003e), practices and effects of early childhood education differ significantly across various contexts, emphasizing the importance of considering cultural, political, and economic factors when assessing investments in this field. As noted by OECD (\u003cspan citationid=\"CR35\" class=\"CitationRef\"\u003e2025\u003c/span\u003e), the primary mechanisms include: building human capital through early skills that impact academic and career success; reducing social inequalities through universal access to quality education; increasing women's participation in the workforce via childcare; and generating economic returns, or ROI, ranging from 4 to 10 euros per euro invested. A comprehensive approach for evaluating educational policies is provided by the 3A2S model (Access, Affordability, Accountability, Sustainability, Social Justice), which has been effectively employed in China to evaluate the effectiveness and fairness of ECE systems (Hong \u0026amp; Chen, \u003cspan citationid=\"CR26\" class=\"CitationRef\"\u003e2017\u003c/span\u003e).\u003c/p\u003e\u003cp\u003eThis framework assesses policy impact not only based on predefined goals but also on the actual effects on children's lives, combining economic analysis with social equity. In the US, studies like Perry Preschool (Heckman \u0026amp; Masterov, \u003cspan citationid=\"CR25\" class=\"CitationRef\"\u003e2007\u003c/span\u003e) and the Abecedarian Project (Campbell et al., \u003cspan citationid=\"CR12\" class=\"CitationRef\"\u003e2012\u003c/span\u003e; Shonkoff, 2024) show how mechanisms such as intensive early intervention, personalized learning, emotional development, and family engagement foster human capital growth and reduce crime rates. Berlinski et al. (\u003cspan citationid=\"CR9\" class=\"CitationRef\"\u003e2009\u003c/span\u003e) highlight mechanisms including the development of cognitive and language skills, increased discipline and motivation, and improved long-term school performance. Likewise, Baek et al. (\u003cspan citationid=\"CR4\" class=\"CitationRef\"\u003e2023\u003c/span\u003e) emphasize that improved cognitive skills serve as a foundation for economic success, parental empowerment, and intergenerational influence. Dickens, Sawhill, and Tebbs (\u003cspan citationid=\"CR19\" class=\"CitationRef\"\u003e2006\u003c/span\u003e) note that early human capital growth, where quality education enhances educational and employment outcomes, is especially important. Early education also helps address socio-economic disparities and offers high economic returns, estimated at \u003cspan\u003e$\u003c/span\u003e4 to \u003cspan\u003e$\u003c/span\u003e10 per dollar invested. Furthermore, it fosters women\u0026rsquo;s workforce participation by easing caregiving burdens. Belfield et al. (\u003cspan citationid=\"CR8\" class=\"CitationRef\"\u003e2006\u003c/span\u003e) demonstrate societal benefits from programs like the High/Scope Perry Preschool, including better education, reduced crime, and higher long-term earnings.\u003c/p\u003e\u003cp\u003eThe theoretical framework of Cunha et al. (2005) and Cunha, Heckman et al. (\u003cspan citationid=\"CR14\" class=\"CitationRef\"\u003e2006\u003c/span\u003e) highlights the importance of the interaction between cognitive and non-cognitive skills developed cumulatively from an early age, with strong self-empowering effects. Dhuey (\u003cspan citationid=\"CR18\" class=\"CitationRef\"\u003e2024\u003c/span\u003e) discusses policy tools such as public funding, family subsidies, support for educators, and incentives for providers to create effective and inclusive systems. Conversely, critical literature (Kamenarac, \u003cspan citationid=\"CR28\" class=\"CitationRef\"\u003e2025\u003c/span\u003e; Campbell-Barr, \u003cspan citationid=\"CR13\" class=\"CitationRef\"\u003e2014\u003c/span\u003e; Gibson et al., \u003cspan citationid=\"CR20\" class=\"CitationRef\"\u003e2015\u003c/span\u003e) challenges mechanisms based on neoliberal discourses, where the child is viewed as an economic investment and the educator as a performance manager. These approaches advocate for a return to democratic models that prioritize the child and community. Zheng \u0026amp; He (\u003cspan citationid=\"CR44\" class=\"CitationRef\"\u003e2023\u003c/span\u003e) use economic modeling with VECM to demonstrate the causal relationship between investments in early childhood education (ECE) and GDP, analyzing both short- and long-term effects.\u003c/p\u003e\u003cp\u003eKusumawardhani (\u003cspan citationid=\"CR29\" class=\"CitationRef\"\u003e2022\u003c/span\u003e) employs spatial models and longitudinal data to assess indirect community effects, such as increased regional development and improved outcomes in nearby schools. Jeong et al. (\u003cspan citationid=\"CR27\" class=\"CitationRef\"\u003e2021\u003c/span\u003e) provide clear evidence that maternal education directly impacts children's early development, reinforcing the idea that family-focused educational interventions have multiple long-term benefits. Demma (\u003cspan citationid=\"CR17\" class=\"CitationRef\"\u003e2023\u003c/span\u003e) introduces an additional mechanism involving parental involvement and institutional choice, showing how communication of program values and recruitment strategies influences social composition and diversity effects. Parental choice as a key mechanism in accessing and improving the quality of ECEC, which is shaped by cultural and economic factors (Nyland et al., \u003cspan citationid=\"CR33\" class=\"CitationRef\"\u003e2009\u003c/span\u003e), as well as local socio-economic influences that significantly affect school readiness, underscoring the importance of geographical context as a structural mechanism in early development (Purdam et al., \u003cspan citationid=\"CR38\" class=\"CitationRef\"\u003e2023\u003c/span\u003e).\u003c/p\u003e\u003c/div\u003e\u003cdiv id=\"Sec16\" class=\"Section2\"\u003e\u003ch2\u003e3.3. Key Recommendations from Investments and Policies in ECE\u003c/h2\u003e\u003cp\u003eAccording to OECD (\u003cspan citationid=\"CR35\" class=\"CitationRef\"\u003e2025\u003c/span\u003e), investments should focus on areas of social disadvantage to maximize the reduction of inequalities, improve the quality of educational staff, develop ECEC monitoring and evaluation systems, and support low-income families. The organization emphasizes that investing in early childhood education is not a cost but a strategy for economic and social development with long-term benefits for individuals and society. Based on the analysis using the 3A2S model, Hong and Chen (\u003cspan citationid=\"CR26\" class=\"CitationRef\"\u003e2017\u003c/span\u003e) recommend expanding coverage in rural and impoverished areas, using targeted subsidies for low-income families, establishing independent accountability systems, strengthening public-private partnerships, developing a sustainable financing framework, and increasing community and family involvement in providing ECE services. Heckman and Masterov (\u003cspan citationid=\"CR25\" class=\"CitationRef\"\u003e2007\u003c/span\u003e) argue that investments in early childhood development not only enhance individual well-being but also reduce social and economic costs by lowering unemployment, crime, and the future need for health and social services. In line with this, Al-Hassan (\u003cspan citationid=\"CR2\" class=\"CitationRef\"\u003e2018\u003c/span\u003e) suggests expanding access to early childhood education programs, especially in rural areas and among vulnerable groups, improving service quality by developing educators\u0026rsquo; capacities and enhancing learning environments, and integrating ECE into national education policies through intersectoral collaboration.\u003c/p\u003e\u003cp\u003eBaek et al. (\u003cspan citationid=\"CR4\" class=\"CitationRef\"\u003e2023\u003c/span\u003e) indicate that scaling up programs like \u0026ldquo;Learning Clubs\u0026rdquo; nationwide is necessary, fostering cross-sector collaboration among health, nutrition, and education, and establishing sustainable policies for the long-term development of early childhood education as a foundation for economic growth. Zheng and He (\u003cspan citationid=\"CR44\" class=\"CitationRef\"\u003e2023\u003c/span\u003e) recommend increasing investment in preschool education as an effective way to accelerate economic growth and improve human capital in Chongqing city. They stress the importance of careful planning to manage resources and avoid financial strain during the early stages, as well as integrating preschool education into economic development policies for sustainable, long-term growth. Dhuey (\u003cspan citationid=\"CR18\" class=\"CitationRef\"\u003e2024\u003c/span\u003e) emphasizes that quality should be a top priority, especially for low-income families. He advocates increasing salaries and professional development opportunities for educators and fostering intersectoral collaboration between government, service providers, and communities for successful policy implementation.\u003c/p\u003e\u003cp\u003eAccording to Dickens, Sawhill, and Tebbs (\u003cspan citationid=\"CR19\" class=\"CitationRef\"\u003e2006\u003c/span\u003e), public policies should significantly boost investment in early childhood education, particularly in impoverished communities, focusing on both expansion and quality to maximize economic benefits. The study by Lefebvre, Merrigan, and Verstraete (\u003cspan citationid=\"CR30\" class=\"CitationRef\"\u003e2009\u003c/span\u003e) shows that childcare subsidies in Canada led to substantial increases in women's labor market participation, reinforcing the positive economic impact of investing in early education. They also recommend maintaining subsidies for early childhood education and childcare centers with federal and state funding and shifting strategic focus toward investing more in early life education alongside secondary and tertiary education. In conclusion, Gibson et al. (\u003cspan citationid=\"CR20\" class=\"CitationRef\"\u003e2015\u003c/span\u003e) urge early childhood education professionals to be aware of the dominant neoliberal discourses influencing their work, advocating for a return to democratic models that place the child and community at the center. In alignment with global policy frameworks, the findings of this review also support UNESCO\u0026rsquo;s (\u003cspan citationid=\"CR43\" class=\"CitationRef\"\u003e2023\u003c/span\u003e) call to view early childhood education as a strategic social investment rather than a short-term expenditure. Consistent with the \u003cem\u003eEducation 2030 Framework for Action\u003c/em\u003e, policies should prioritize equity, quality, and sustainable financing mechanisms, particularly in low- and middle-income countries. Integrating ECE investment within national development strategies could therefore strengthen both human-capital formation and long-term economic resilience, ensuring that educational reforms contribute simultaneously to economic efficiency and social justice.\u003c/p\u003e\u003cp\u003eTo provide a structured overview of the primary empirical studies included in this review, Table\u0026nbsp;\u003cspan refid=\"Tab4\" class=\"InternalRef\"\u003e4\u003c/span\u003e summarizes key features of the selected research articles. This comparison table includes details about the authors, publication year, focus country, type of early childhood education investment, economic impact identified, and methodology used. It shows the variety of approaches and findings across different regions and policy settings and helps synthesize evidence on long-term economic returns from ECE investments.\u003c/p\u003e\u003cp\u003e\u003cdiv class=\"gridtable\"\u003e\u003ctable float=\"Yes\" id=\"Tab4\" border=\"1\"\u003e\u003ccaption language=\"En\"\u003e\u003cdiv class=\"CaptionNumber\"\u003eTable 4\u003c/div\u003e\u003cdiv class=\"CaptionContent\"\u003e\u003cp\u003e\u003cem\u003eSummary Table of Key Studies on ECE Investment and Economic Impact UNESCO Framework Alignment\u003c/em\u003e\u003c/p\u003e\u003c/div\u003e\u003c/caption\u003e\u003ccolgroup cols=\"7\"\u003e\u003cdiv align=\"left\" class=\"colspec\" colname=\"c1\" colnum=\"1\"\u003e\u003c/div\u003e\u003cdiv align=\"char\" char=\".\" class=\"colspec\" colname=\"c2\" colnum=\"2\"\u003e\u003c/div\u003e\u003cdiv align=\"left\" class=\"colspec\" colname=\"c3\" colnum=\"3\"\u003e\u003c/div\u003e\u003cdiv align=\"left\" class=\"colspec\" colname=\"c4\" colnum=\"4\"\u003e\u003c/div\u003e\u003cdiv align=\"left\" class=\"colspec\" colname=\"c5\" colnum=\"5\"\u003e\u003c/div\u003e\u003cdiv align=\"left\" class=\"colspec\" colname=\"c6\" colnum=\"6\"\u003e\u003c/div\u003e\u003cdiv align=\"left\" class=\"colspec\" colname=\"c7\" colnum=\"7\"\u003e\u003c/div\u003e\u003cthead\u003e\u003ctr\u003e\u003cth align=\"left\" colname=\"c1\"\u003e\u003cp\u003eAuthor(s)\u003c/p\u003e\u003c/th\u003e\u003cth align=\"left\" colname=\"c2\"\u003e\u003cp\u003eYear\u003c/p\u003e\u003c/th\u003e\u003cth align=\"left\" colname=\"c3\"\u003e\u003cp\u003eCountry\u003c/p\u003e\u003c/th\u003e\u003cth align=\"left\" colname=\"c4\"\u003e\u003cp\u003eType of Investment\u003c/p\u003e\u003c/th\u003e\u003cth align=\"left\" colname=\"c5\"\u003e\u003cp\u003eEconomic Impact\u003c/p\u003e\u003c/th\u003e\u003cth align=\"left\" colname=\"c6\"\u003e\u003cp\u003eMethodology\u003c/p\u003e\u003c/th\u003e\u003cth align=\"left\" colname=\"c7\"\u003e\u003cp\u003eUNESCO Dimension (Primary Focus)\u003c/p\u003e\u003c/th\u003e\u003c/tr\u003e\u003c/thead\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd align=\"left\" colname=\"c1\"\u003e\u003cp\u003eHeckman et al.\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"char\" char=\".\" colname=\"c2\"\u003e\u003cp\u003e2010\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c3\"\u003e\u003cp\u003eUSA\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c4\"\u003e\u003cp\u003ePerry Preschool Program\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c5\"\u003e\u003cp\u003eROI up to \u003cspan\u003e$\u003c/span\u003e7 per \u003cspan\u003e$\u003c/span\u003e1 invested\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c6\"\u003e\u003cp\u003eCost-benefit analysis\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c7\"\u003e\u003cp\u003eEfficiency \u0026amp; Quality\u003c/p\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd align=\"left\" colname=\"c1\"\u003e\u003cp\u003ePaananen et al.\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"char\" char=\".\" colname=\"c2\"\u003e\u003cp\u003e2015\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c3\"\u003e\u003cp\u003eMulti-country (OECD member states)\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c4\"\u003e\u003cp\u003ePublic policy investment in early childhood education quality frameworks\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c5\"\u003e\u003cp\u003eIndirect \u0026ndash; the paper critiques the shift toward economic/utilitarian rationales in ECEC, framing quality as preparation for future productivity and economic outcomes\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c6\"\u003e\u003cp\u003eCritical discourse analysis of policy documents (OECD Starting Strong I, II, III)\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c7\"\u003e\u003cp\u003eQuality \u0026amp; Equity\u003c/p\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd align=\"left\" colname=\"c1\"\u003e\u003cp\u003eBaek et al.\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"char\" char=\".\" colname=\"c2\"\u003e\u003cp\u003e2023\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c3\"\u003e\u003cp\u003eVietnam\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c4\"\u003e\u003cp\u003eNational ECE programs\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c5\"\u003e\u003cp\u003e\u0026gt;\u003cspan\u003e$\u003c/span\u003e5 societal return per \u003cspan\u003e$\u003c/span\u003e1 invested\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c6\"\u003e\u003cp\u003eCost-benefit analysis\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c7\"\u003e\u003cp\u003eEfficiency \u0026amp; Equity\u003c/p\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd align=\"left\" colname=\"c1\"\u003e\u003cp\u003eBerlinski et al.\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"char\" char=\".\" colname=\"c2\"\u003e\u003cp\u003e2009\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c3\"\u003e\u003cp\u003eArgentina\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c4\"\u003e\u003cp\u003ePre-primary education\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c5\"\u003e\u003cp\u003eImproved primary school performance\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c6\"\u003e\u003cp\u003eQuasi-experimental\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c7\"\u003e\u003cp\u003eAccess \u0026amp; Quality\u003c/p\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd align=\"left\" colname=\"c1\"\u003e\u003cp\u003eZheng \u0026amp; He\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"char\" char=\".\" colname=\"c2\"\u003e\u003cp\u003e2023\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c3\"\u003e\u003cp\u003eChina\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c4\"\u003e\u003cp\u003ePreschool education\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c5\"\u003e\u003cp\u003eIncreased GDP (causal link shown)\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c6\"\u003e\u003cp\u003eEconometric modeling (VECM)\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c7\"\u003e\u003cp\u003eEfficiency \u0026amp; Sustainability\u003c/p\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd align=\"left\" colname=\"c1\"\u003e\u003cp\u003eD\u0026uuml;rdane Şirin Sara\u0026ccedil;oğlu \u0026amp; Deniz Karaoğlan\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"char\" char=\".\" colname=\"c2\"\u003e\u003cp\u003e2019\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c3\"\u003e\u003cp\u003eTurkey\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c4\"\u003e\u003cp\u003eEarly childhood education (ECE) as human capital investment\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c5\"\u003e\u003cp\u003eHigh societal return \u0026mdash; 1 TL investment yields 6\u0026ndash;7 TL; improved educational and labor outcomes; long-term GDP growth potential\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c6\"\u003e\u003cp\u003eComparative analysis, OECD/PISA/WDI data, interdisciplinary lit. review, Heckman economic model.\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c7\"\u003e\u003cp\u003eEfficiency \u0026amp; Quality\u003c/p\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd align=\"left\" colname=\"c1\"\u003e\u003cp\u003ePorte et al.\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"char\" char=\".\" colname=\"c2\"\u003e\u003cp\u003e2023\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c3\"\u003e\u003cp\u003eDenmark and Sweeden\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c4\"\u003e\u003cp\u003ePublic investment in Early Childhood Education and Care (ECEC), specifically in funding and regulatory quality standards\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c5\"\u003e\u003cp\u003eNo monetary value: policy changes (e.g. austerity, regulation) impacted ECEC quality and outcomes\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c6\"\u003e\u003cp\u003eStructured comparison, RWS framework, governance policy analysis, 2000\u0026ndash;2020 focus (post-2008 crisis).\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c7\"\u003e\u003cp\u003eSustainability \u0026amp; Quality\u003c/p\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd align=\"left\" colname=\"c1\"\u003e\u003cp\u003eGibson et al.\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"char\" char=\".\" colname=\"c2\"\u003e\u003cp\u003e2015\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c3\"\u003e\u003cp\u003eAustralia\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c4\"\u003e\u003cp\u003eInvestment in early childhood education (ECE) as part of national economic development strategy\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c5\"\u003e\u003cp\u003eECE framed as investment for future economic productivity; no monetary impact quantified\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c6\"\u003e\u003cp\u003eGenealogical discourse analysis (Foucauldian), policy document \u0026ldquo;New Directions\u0026rdquo; (2007).\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c7\"\u003e\u003cp\u003eEquity \u0026amp; Inclusion\u003c/p\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd align=\"left\" colname=\"c1\"\u003e\u003cp\u003eMcCarthy \u0026amp; Morote\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"char\" char=\".\" colname=\"c2\"\u003e\u003cp\u003e2009\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c3\"\u003e\u003cp\u003eUSA\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c4\"\u003e\u003cp\u003eFederal investment in preschool education via Head Start funding and preschool enrollment programs (ages 3\u0026ndash;5)\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c5\"\u003e\u003cp\u003eIncreased Head Start funding \u0026amp; preschool enrollment boost graduation rates; implies long-term economic gains\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c6\"\u003e\u003cp\u003eTime-series analysis (1964\u0026ndash;2005); Final Prediction Error; Granger causality; epidemiological lens on education.\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c7\"\u003e\u003cp\u003eAccess \u0026amp; Efficiency\u003c/p\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd align=\"left\" colname=\"c1\"\u003e\u003cp\u003eDemma R.\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"char\" char=\".\" colname=\"c2\"\u003e\u003cp\u003e2022\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c3\"\u003e\u003cp\u003eUS\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c4\"\u003e\u003cp\u003eSocial capital investment in early childhood education through socioeconomic diversity in community-based programs\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c5\"\u003e\u003cp\u003eNo monetary values provided; potential positive impacts mentioned include broader access, equity, and long-term inclusion benefits via SES-diverse ECE programs\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c6\"\u003e\u003cp\u003eCase study, qualitative analysis, two socioeconomically diverse early education programs in Baltimore\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c7\"\u003e\u003cp\u003eEquity \u0026amp; Inclusion\u003c/p\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd align=\"left\" colname=\"c1\"\u003e\u003cp\u003eDickens et al.\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"char\" char=\".\" colname=\"c2\"\u003e\u003cp\u003e2006\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c3\"\u003e\u003cp\u003eUS\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c4\"\u003e\u003cp\u003eEarly childhood education (universal high-quality preschool)\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c5\"\u003e\u003cp\u003eGDP \u0026uarr; up to \u003cspan\u003e$\u003c/span\u003e2.34T by 2080; preferred model: +\u003cspan\u003e$\u003c/span\u003e2.03T (+\u003cspan\u003e$\u003c/span\u003e7,699/worker); net fiscal surplus: \u003cspan\u003e$\u003c/span\u003e341B\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c6\"\u003e\u003cp\u003eMacroeconomic simulations (75 years); growth models: Mankiw-Romer-Weil, Uzawa, Lucas; sensitivity analysis.\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c7\"\u003e\u003cp\u003eEfficiency \u0026amp; Sustainability\u003c/p\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd align=\"left\" colname=\"c1\"\u003e\u003cp\u003eBoca et al.\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"char\" char=\".\" colname=\"c2\"\u003e\u003cp\u003e2023\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c3\"\u003e\u003cp\u003e14 European Countries\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c4\"\u003e\u003cp\u003eDuration of ECE attendance (0\u0026ndash;4\u0026thinsp;+\u0026thinsp;years)\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c5\"\u003e\u003cp\u003eTest scores \u0026uarr;: +13\u0026ndash;24% (reading), +\u0026thinsp;9\u0026ndash;24% (math), +\u0026thinsp;8\u0026ndash;22% (science); peak at 3\u0026ndash;4 yrs ECE\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c6\"\u003e\u003cp\u003ePISA 2015 \u0026amp; 2018 data; panel regressions with fixed effects; heterogeneity analysis by demographics and system type.\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c7\"\u003e\u003cp\u003eQuality \u0026amp; Access\u003c/p\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd align=\"left\" colname=\"c1\"\u003e\u003cp\u003eNuland Ch., et al.\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"char\" char=\".\" colname=\"c2\"\u003e\u003cp\u003e2010\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c3\"\u003e\u003cp\u003eChina\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c4\"\u003e\u003cp\u003eInvestment in human capital through early childhood education and care (ECEC)\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c5\"\u003e\u003cp\u003eSupporting current workforce (childcare enables parental employment)\u003c/p\u003e\u003cp\u003eBuilding future workforce (development of human capital in early years)\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c6\"\u003e\u003cp\u003eSurvey-based qualitative study analyzing parental decision-making and policy implications for ECEC in urban China\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c7\"\u003e\u003cp\u003eAccess \u0026amp; Inclusion\u003c/p\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd align=\"left\" colname=\"c1\"\u003e\u003cp\u003eKamenarac O.,\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"char\" char=\".\" colname=\"c2\"\u003e\u003cp\u003e2025\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c3\"\u003e\u003cp\u003eNew Zeland\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c4\"\u003e\u003cp\u003ePublic policy framing and discourse surrounding ECE (non-monetary, institutional investment)\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c5\"\u003e\u003cp\u003eNot quantified in monetary terms; critiques economic framing of ECE as investment for future productivity\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c6\"\u003e\u003cp\u003eCritical discourse analysis of policy documents and academic literature on ECE\u003c/p\u003e\u003c/td\u003e\u003ctd align=\"left\" colname=\"c7\"\u003e\u003cp\u003eEquity \u0026amp; Quality\u003c/p\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/colgroup\u003e\u003c/table\u003e\u003c/div\u003e\u003c/p\u003e\u003cp\u003eIn addition to the economic and methodological categorization, the reviewed studies were qualitatively assessed according to the UNESCO (\u003cspan citationid=\"CR43\" class=\"CitationRef\"\u003e2023\u003c/span\u003e) \u003cem\u003eEducation 2030 Framework for Action\u003c/em\u003e dimensions, Access, Equity and Inclusion, Quality, Efficiency, and Sustainability. Each study was mapped to its primary UNESCO dimension based on the thematic emphasis of its findings and policy implications. For example, cost\u0026ndash;benefit or ROI-focused papers were categorized under Efficiency, while those emphasizing teacher training or program quality were aligned with Quality. Studies addressing fairness, inclusion, or regional disparities were mapped under Equity and Inclusion, and those analyzing long-term policy reforms or funding frameworks under Sustainability. This approach allowed for a more comprehensive evaluation of how ECE investment research aligns with global education and development priorities, as outlined in the UNESCO framework.\u003c/p\u003e\u003c/div\u003e\u003cdiv id=\"Sec17\" class=\"Section2\"\u003e\u003ch2\u003e3.4. Research Gaps and Future Research Directions\u003c/h2\u003e\u003cp\u003eAlthough the existing literature provides a solid foundation for understanding the long-term effects of investments in early childhood education, the review of the 42 selected studies reveals several important gaps that future research needs to address. Many studies focus on economic impacts, such as increased income and employment, but pay less attention to non-economic effects that could indirectly influence economic development, like improving social cohesion, promoting democratic participation, or reducing violence and crime. Additionally, the role of educators and institutional dynamics within ECE centers has not been sufficiently examined in relation to long-term economic outcomes.\u003c/p\u003e\u003cp\u003eMuch of the literature relies on observational studies, while more rigorous approaches, such as large-scale randomized controlled trials (RCTs) or dynamic structural models that can capture the complex interactions among public policies, family behavior, and the labor market, are lacking. Additionally, many studies do not transparently report their limitations, making it difficult to generalize the findings. The research mainly focuses on high-income countries like the United States, the United Kingdom, and Australia. There is a significant lack of detailed data and analysis for low- and middle-income countries, especially in regions such as the Balkans, Central Asia, or Sub-Saharan Africa. This limits the global understanding of how investments in ECE work and emphasizes the need for contextual studies that consider local economic, cultural, and institutional factors.\u003c/p\u003e\u003c/div\u003e"},{"header":"4. Conclusions","content":"\u003cp\u003eThis literature review clearly shows that investing in early childhood education has a significant and lasting impact on economic and social development. For every dollar spent at this stage, society gains far more in income, employment, and social well-being. Achieving these outcomes requires more than just providing services; it also depends on high-quality investment, active family participation, and sustainable support from institutions. Additionally, the impact of these investments largely relies on the social and cultural contexts where they are carried out. The researchers suggest that policies should prioritize helping the most vulnerable communities, improving quality, and creating sustainable financial systems that support early childhood education. It is equally important to see early childhood education not just as an economic tool but as a space where children can develop holistically, considering the social and cultural aspects of their lives. Only with this approach can we build a fairer, stronger society and a brighter future for generations to come.\u003c/p\u003e\u003cp\u003eBeyond these practical implications, this review also offers a methodological contribution. It contributes original analytical findings by systematically aligning the economic evaluation of ECE investments with the UNESCO (\u003cspan citationid=\"CR43\" class=\"CitationRef\"\u003e2023\u003c/span\u003e) \u003cem\u003eEducation 2030 Framework\u003c/em\u003e. By mapping 42 international studies to these global dimensions, the paper identifies significant research imbalances, most evidence centers on efficiency and quality, while equity and sustainability remain underexplored, offering a new framework for future comparative education research.\u003c/p\u003e"},{"header":"Declarations","content":"\u003cp\u003e\u003ch2\u003eConflicts of Interest:\u003c/h2\u003e\u003cp\u003eThe authors declare that they have no conflicts of interest.\u003c/p\u003e\u003c/p\u003e\u003ch2\u003eFunding:\u003c/h2\u003e\u003cp\u003eThis research received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors.\u003c/p\u003e\u003ch2\u003eAuthor Contribution\u003c/h2\u003e\u003cp\u003eK.B. led the study design, the theoretical structuring, and the main analytical interpretation.B.\u0026Ccedil;. developed the methodological sections, conducted the comparative analysis, and formulated the discussion and recommendations.B.\u0026Ccedil;e. supported data analysis, literature screening, and the preparation of tables/figures.R.B. contributed to the literature review, source summarization, and final manuscript checks.\u003c/p\u003e\u003ch2\u003eData Availability\u003c/h2\u003e\u003cp\u003eThe data supporting the findings of this study consist of published articles retrieved from Scopus, Web of Science, and OECD iLibrary. These sources are publicly available and fully referenced in the manuscript. Additional materials (such as article selection tables and coding sheets) can be obtained from the corresponding author upon reasonable request.\u003c/p\u003e"},{"header":"References","content":"\u003col\u003e\n\u003cli\u003eAdamson, E., \u0026amp; Brennan, D. (2013). Social investment or private profit? Diverging notions of \u0026lsquo;investment\u0026rsquo; in early childhood education and care. \u003cem\u003eContemporary Issues in Early Childhood\u003c/em\u003e. https://doi.org/10.1007/s13158-013-0098-x\u003c/li\u003e\n\u003cli\u003eAl-Hassan, O. M. (2018). Developments of early childhood education in Jordan. \u003cem\u003eEarly Years\u003c/em\u003e, 38(4), 351\u0026ndash;362. https://doi.org/10.1080/09575146.2018.1512562 \u003c/li\u003e\n\u003cli\u003eAmir-Behghadami M, Janati A. 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Quality drift within a narrative of investment in early childhood education. \u003cem\u003eEuropean Early Childhood Education Research Journal, 23\u003c/em\u003e(5), 660\u0026ndash;672. https://doi.org/10.1080/1350293X.2015.1104049\u003c/li\u003e\n\u003cli\u003ePage MJ, McKenzie JE, Bossuyt PM, Boutron I, Hoffmann TC, Mulrow CD, et al. The PRISMA 2020 statement: an updated guideline for reporting systematic reviews. BMJ. 2021;372:n71.\u003c/li\u003e\n\u003cli\u003ePurdam, K., Troncoso, P., Morales-Gomez, A., \u0026amp; Leckie, G. (2023). \u003cem\u003eLocal geographic variations in children\u0026rsquo;s school readiness: A multilevel analysis of the development gaps in England\u003c/em\u003e. Educational Research. https://doi.org/10.1007/s10671-023-09344-z\u003c/li\u003e\n\u003cli\u003eRoopnarine, J. L., Johnson, J. E., Quinn, S. F., \u0026amp; Patte, M. M. (Eds.). (2018). \u003cem\u003eHandbook of international perspectives on early childhood education\u003c/em\u003e. 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(2018). \u0026lsquo;Social investment\u0026rsquo; as political economy of education: Recent changes in early childhood education in New Zealand. \u003cem\u003eGlobal Studies of Childhood, 8\u003c/em\u003e(2), 163\u0026ndash;175. https://doi.org/10.1177/2043610618763177\u003c/li\u003e\n\u003cli\u003e\u003cstrong\u003eUNESCO.\u003c/strong\u003e (2023). \u003cem\u003eEducation 2030 Framework for Action: Towards Inclusive and Equitable Quality Education and Lifelong Learning for All.\u003c/em\u003e Paris: UNESCO. Available at https://unesdoc.unesco.org\u003c/li\u003e\n\u003cli\u003eZheng, W., \u0026amp; He, X. (2023). Research on the relationship between investment in preschool education and economic growth in Chongqing. \u003cem\u003eApplied Mathematics and Nonlinear Sciences\u003c/em\u003e. https://doi.org/10.2478/amns-2023-00031\u003c/li\u003e\n\u003c/ol\u003e"}],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":true,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":false,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":false,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"Early Childhood Education, Long-Term, Impact, Investment in Education, Economic Development, Impact Evaluation","lastPublishedDoi":"10.21203/rs.3.rs-8187807/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-8187807/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eInvestment in early childhood education has long been a significant research topic due to its impact on long-term economic development. This paper presents a systematic review of the literature, analyzing 42 scientific articles to examine the long-term financial effects of investing in early childhood education. Unlike earlier reviews, this paper emphasizes the underlying mechanisms behind these effects, offering a deeper understanding to support policy development. The selection process for the literature was meticulous, guaranteeing a comprehensive overview of current academic debates on this topic. The analysis highlights economic outcomes linked to investments in ECE, such as improved education, higher labor market participation, reduced social expenditures, and enhanced overall human capital development. In addition to investments in ECE, attention is given to other influencing factors like program quality, parental involvement, and early skill development. The review also considers how these effects vary across income groups and countries. Findings indicate that investments in ECE yield substantial long-term returns at both the individual and societal levels, with benefit-cost ratios ranging from \u003cspan\u003e$\u003c/span\u003e4 to \u003cspan\u003e$\u003c/span\u003e10 for every \u003cspan\u003e$\u003c/span\u003e1 invested. This review offers original insights by synthesizing evidence on international differences and mechanisms of long-term returns, addressing a gap in comparative ECE economic analyses. The paper concludes with policy suggestions aimed at maximizing the economic benefits of early childhood education, especially in low- and middle-income countries. This review also aligns with the UNESCO \u003cem\u003eEducation 2030 Framework for Action\u003c/em\u003e, emphasizing that early childhood education should be regarded as a long-term public investment that advances equity, quality, and sustainable economic growth.\u003c/p\u003e","manuscriptTitle":"The Long-Term Effects of Investments in Early Childhood Education on Economic Development: A Synthesizing Approach of Recent Literature","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-12-02 13:47:18","doi":"10.21203/rs.3.rs-8187807/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"b1261f04-9f48-4f47-9bde-1f8eea5aed7a","owner":[],"postedDate":"December 2nd, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2026-02-03T21:24:06+00:00","versionOfRecord":[],"versionCreatedAt":"2025-12-02 13:47:18","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-8187807","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-8187807","identity":"rs-8187807","version":["v1"]},"buildId":"XKTyCvWXoU3ODBz1xrDgd","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}