Improving the green technology innovation capability of enterprises is an important way for industrial enterprises to improve product quality and production efficiency and reduce industrial pollution and energy consumption. Based on the Porter hypothesis, this paper took the data of listed companies of the heavy polluting industry in Chinese A-shares from 2011–2018 as a study sample, and a difference-in-differences (DID) model was constructed to explore the impact of environmental management system certification (EMSC) on enterprises’ green innovation. This paper also studied the differential impact between the EMSC and enterprises’ green innovation from the perspective of enterprise heterogeneity. It was found that the EMSC has a significant promotion effect on the enterprises’ green innovation; this promotion changes with the size and ownership of the enterprise and the lifecycle of the enterprise. Meanwhile, customer, shareholder, and creditor satisfaction all play a positive moderating role in the process of EMSC affecting green innovation, while the moderating role of supplier satisfaction is not significant. The findings of this paper have important implications for the understanding of the role of EMSC in promoting green innovation in enterprises.

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 eases the pressure on resources. 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 improved the comprehensive utilization rate of ISW in resource-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.

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.