Study on the Effect and Mechanism of Circular Economy Promotion Law on the Utilization Rate of Industrial Solid Waste in Resource-based Cities

In recent decades, the impact of industrial solid waste (ISW) on the environment is arousing the government’s attention. Improving the comprehensive utilization rate of ISW not only reduces environmental pollution but also promotes the recycling of resources and ease the pressure on re-sources. This study uses the panel data of 278 prefecture-level cities in China from 2003 to 2015 to establish a DID model then empirically analyze the impact of the Circular Economy Promotion Law (CEPL) on the comprehensive utilization rate of ISW in resource-based cities. It was found that implementation of the CEPL will increase the comprehensive utilization rate of ISW in re-source-based cities. Furthermore, the higher the city's environmental regulation score, the more obvious the effect of the CEPL on the comprehensive utilization rate of ISW. This study also found that the impact of CEPL on the comprehensive utilization rate of ISW in resource-based cities will change due to variation of city’s type and city’s location. This study not only enriches the theoretical basis for the research on factors affecting ISW management but also provides new ideas for transforming the ISW management model and realizing a "win-win" between the economy and the ecological environment.