The effect of port integration policy on port green efficiency: Evidence from Zhejiang (China)

The effect of port integration policy on port green efficiency: Evidence from Zhejiang (China) | 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 Research Article The effect of port integration policy on port green efficiency: Evidence from Zhejiang (China) Qingmei Liao, Hong Zhen, Tong Han This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4354880/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 Zhejiang (China) has several large ports and is an early province in implementing port integration policy. This study evaluates the green efficiency of major ports in Zhejiang (China) for 2019–2022 using the Super-slack-based measure (Super-SBM) model with CO 2 emissions. This study provides theoretical and empirical analyses of the effect of integration policy on port green efficiency. The results show that Ningbo and Zhoushan ports have high green efficiency. However, the green efficiency of Taizhou, Jiaxing Inland and Wenzhou Ports needs to be improved urgently because of the massive investment in coastline and berths and high carbon emissions. The port green efficiency can be improved by implementing an integration policy between ports geographically close, such as Ningbo, Zhoushan and Jiaxing ports. Higher port city levels and fixed asset investment positively impact port green efficiency. The findings provide a reference for policymakers to improve the green efficiency of ports. port integration port green efficiency port carbon emission Super-SBM model influence factor Full Text Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-4354880","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":316405370,"identity":"2830ae14-cf22-41ff-ab49-a6f6ddcbd281","order_by":0,"name":"Qingmei Liao","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA20lEQVRIiWNgGAWjYDACZjApIcPG3n7wQUJFDfFaePh4ziQbPDhzjHjLeOQkEswkH7YwE1bKd5z38KsbFRY8bAwJaRWJDWwM/O3dCXi1SB7mS7POOSMB1HLw2I3EHTIMEmfObsCrxeAwj5lxbhtQC2ND2o3EM2wMBhK5xGj5B9TCzGBWkNjGTJQW48e5DUAtbAxmDERpkQTawpxzDKiFhydZIuHMMR6CfuE7f8b4c05NnZz8/OcHP/6oqJHjb+/Fr4XhAAObBDKfB79yiBbmD4RVjYJRMApGwYgGAOa5QvgekyWwAAAAAElFTkSuQmCC","orcid":"https://orcid.org/0009-0007-8647-5558","institution":"Zhejiang Scientific Research Institute of Transport","correspondingAuthor":true,"prefix":"","firstName":"Qingmei","middleName":"","lastName":"Liao","suffix":""},{"id":316405371,"identity":"0905d51b-883b-420b-938a-41b4694167ee","order_by":1,"name":"Hong Zhen","email":"","orcid":"","institution":"Shanghai Maritime University","correspondingAuthor":false,"prefix":"","firstName":"Hong","middleName":"","lastName":"Zhen","suffix":""},{"id":316405372,"identity":"68beacbe-2460-4919-8a3a-07da16b85e9e","order_by":2,"name":"Tong Han","email":"","orcid":"","institution":"Zhejiang Scientific Research Institute of Transport","correspondingAuthor":false,"prefix":"","firstName":"Tong","middleName":"","lastName":"Han","suffix":""}],"badges":[],"createdAt":"2024-05-01 14:54:24","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4354880/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4354880/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":70142264,"identity":"d43681e4-a6f8-44ad-a853-e5aaa8ed5e3f","added_by":"auto","created_at":"2024-11-28 20:12:04","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":467424,"visible":true,"origin":"","legend":"","description":"","filename":"Manuscript.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4354880/v1_covered_e2d04c4c-8e61-4c0e-b1ea-8e017511d14f.pdf"}],"financialInterests":"","formattedTitle":"The effect of port integration policy on port green efficiency: Evidence from Zhejiang (China)","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"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":"port integration, port green efficiency, port carbon emission, Super-SBM model, influence factor","lastPublishedDoi":"10.21203/rs.3.rs-4354880/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4354880/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eZhejiang (China) has several large ports and is an early province in implementing port integration policy. 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