环境规制对我国装备制造业绿色全要素生产率的门槛效应分析

Analysis of the Threshold Effect of Environmental Regulation on Green Total Factor Productivity in China's Equipment Manufacturing Industry

通过收集2009—2020年装备制造业涵盖7大行业的相关数据,基于EBM-GML模型,计算得出我国装备制造业绿色全要素生产率,建立非线性面板模型,并进行门槛效应回归,研究绿色转型的门槛效应。研究结果表明,环境规制对装备制造业绿色全要素生产率的面板回归呈现非线性关系,并且有单一门槛效应存在。其中,门槛变量为绿色转型程度。由于有门槛效应的存在,政府制定环境规制政策时,应当针对性地考虑企业的绿色转型程度。

By collecting relevant data of equipment manufacturing industry covering 7 industries from 2009 to 2020,based on the EBM-GML model,the green total factor productivity of China's equipment manufacturing industry is calculated,a nonlinear panel model is established,and the threshold effect regression is carried out to study the threshold effect of green transformation.The research results show that the panel regression of environmental regulation on the green total factor productivity of equipment manufacturing industry presents a nonlinear relationship and a single threshold effect exists.Among them,the threshold variable is the degree of green transformation.Due to the existence of the threshold effect,the government should consider the degree of green transformation of enterprises in a targeted way when formulating environmental regulation policies.