环境规制、绿色信贷与中国工业绿色创新效率——基于空间杜宾模型

Environmental Regulation,Green Credit and Industrial Green Innovation Efficiency in China:Based on Spatial Durbin Model

不断提高工业绿色创新效率对我国实现经济绿色发展具有重要作用,不同类型环境规制对我国工业绿色创新效率的差异化影响值得进行深入研究。基于2001-2020年我国30个省份的面板数据,在考虑非期望产出基础上,利用超效率SBM-DEA模型测算我国各省份工业绿色创新效率,然后构建空间杜宾模型分析在绿色信贷的调节作用下,三种环境规制工具对我国工业绿色创新效率的影响及其空间溢出效应。结果表明:我国工业绿色创新效率仍有较大的提升空间,呈现明显的正向空间相关性;命令型环境规制可以有效促进本地工业绿色创新效率的提高,而对邻近地区的工业绿色创新效率产生了负面影响;市场激励型环境规制对本地及邻地的工业绿色创新效率起到抑制作用;公众参与型环境规制可以有效改善本地及邻近地区的工业绿色创新效率。在绿色信贷调节作用下,三种类型环境规制对工业绿色创新效率的提高均起到推动作用。为提升我国的工业绿色创新效率,应积极推动绿色信贷水平的提高,充分发挥不同类型环境规制工具的重要作用,重视其优化组合,充分发挥工业绿色创新活动的空间溢出效应,缩小我国区域间工业绿色创新水平差距。

Based on the panel data of 30 provinces in China from 2001 to 2020,the super-efficiency SBMDEA model is developed to measure the industrial green innovation efficiency of all provinces in China considering the unexpected output,and then a spatial Durbin model is constructed to analyze the impact of three environmental regulation tools on the efficiency of China’s industrial green innovation and its spatial spillover effects under the regulation of green credit.The results show that the efficiency of industrial green innovation in China still has a large space to improve,showing an obvious positive spatial correlation.The command-based environmental regulation can effectively improve the efficiency of green innovation in local industry,but has a negative impact on the efficiency of neighboring areas.The marketincentive environmental regulation has a restraining effect on the efficiency of local and adjacent industrial green innovation.The public-participation environmental regulations can effectively improve the efficiency of industrial green innovation in the local and neighboring regions.Under the moderating effect of green credit,the three types of environmental regulations all play a driving role in improving the efficiency of industrial green innovation.To improve China’s industrial green innovation efficiency,we should actively promote the green credit levels,give full play to the important role of different types of environmental regulation tools,attach importance to their optimal combination,and give full play to the spatial spillover effect of industrial green innovation activities so as to narrow the gap in terms of the level of industrial green innovation between regions in China.