To explore the impact of environmental regulation on the green technological innovation of listed companies in the Yellow River Basin,this study employs the kernel density estimation method to measure the level of green technological innovation among these companies.Additionally,the Spatial Error Model(SEM)is used to analyze the effects of formal and informal environmental regulations on green technological innovation in the Yellow River Basin.The results indicate a continuous improvement in the overall level of green technological innovation within the basin,characterized by an initial concentration followed by dispersion.There is a significant difference between the upstream and mid-to-downstream regions,with the spatial evolution pattern of polarization among regions gradually disappearing,leading to a balanced development pattern spreading from central cities to the periphery.A"U"-shaped relationship is observed between formal environmental regulation and green technological innovation among listed companies in the Yellow River Basin,while an inverse"U"-shaped relationship exists between informal environmental regulation and green technological innovation.
Yellow River Basinformal environmental regulationinformal environmental regulationlisted companiesgreen technology innovation
NETL
NSTL
万方数据
