政府环保管理权限划分与绿色技术创新——来自环境保护管理体制垂直化改革的证据

Intergovernmental Division of Environmental Management Authority and Green Technological Innovation——Evidence from the Vertical Management Reform of Environmental Protection Agencies

本文基于中国环保管理体制垂直化改革的实践,分析了环境保护管理权限划分对绿色技术创新的影响。使用2011年到2021年地级市数据,运用双重差分模型进行实证分析,发现环保垂直管理改革对绿色专利数量具有显著的促进效应。对不同类型的专利分别进行考察,结果显示改革主要增加了绿色实用新型专利数量,对绿色发明专利无显著影响。异质性分析结果揭示,改革对特大城市和超大城市的促进作用高于其他规模相对较小的城市。进一步对相关机制进行探讨,发现环境规制强度上升是促进绿色技术创新的重要影响因素。可见,环保垂直改革不仅有利于加强环境治理,也有利于提升地区的绿色竞争力。

Based on the vertical management reform of environmental protection agencies,this paper examines the impact of vertical management reform on green technological innovation.Using 2011-2021 city-level data,the difference-in-difference estimation shows that vertical management reform has a significant promotion effect on the number of green patents.Examining different types of patents separately,the results show that the reform mainly increase the number of green utility model patents,with no significant impact on green invention patents.Heterogeneity analysis results reveal that the reform has a stronger promoting effect on super-large and mega-cities than on other relatively smaller cities.Further exploration of the relevant mechanisms reveals that the increase in environmental regulation intensity is an important factor promoting green technological innovation.The results verify that the vertical management reform is not only conducive to strengthening environmental governance,but also conducive to enhancing the regional green competitiveness.