环境规制对资源型城市产业结构转型的影响

基于中国2003~2016年115个资源型城市，利用固定效应模型和中介效应模型，研究环境规制对产业结构转型的影响及绿色技术创新在这一过程中所发挥的中介作用.结果表明，从整体看，正式与非正式环境规制均能显著地促进产业结构向合理化、高级化转型，且非正式环境规制的促进作用更为明显.此外，绿色技术创新在环境规制促进产业结构转型的效应中发挥着中介作用.经过一系列稳健性检验后结论仍然成立.基于城市成长周期角度，正式与非正式环境规制对产业结构合理化、高级化的作用随城市成长周期不同而表现出显著差异，同时绿色技术创新在环境规制对产业结构转型过程中发挥的中介作用随城市成长周期不同也明显不一致；基于时期异质性角度，2013~2016年正式与非正式环境规制对产业结构合理化、高级化作用相较于2003~2012年均有所提升，且绿色技术创新在环境规制促进产业结构高级化中存在中介效应.

The impact of environmental regulation on the industrial structure transformation of resource-based cities

Based on 115 resource-based cities in China from 2003 to 2016, this paper studied the impact of environmental regulation on the transformation of industrial structure and the mediation effect of green technology innovation in this process by using fixed effect model and mediation effect model. It was found that, as a whole, the rationalization and optimization of industrial structure could be promoted by the implementation of formal environmental regulation and informal environmental regulation, and the implementation effect of informal environmental regulation was more significant. Furthermore, green technology innovation played an intermediary role in promoting the transformation of industrial structure by environmental regulation. After a series of robustness tests, the conclusions were still valid. Based on the perspective of urban growth cycles, the effects of formal environmental regulation and informal environmental regulation on the rationalization and optimization of the industrial structure shown significant differences with different urban growth cycles. Meanwhile, the mediation effect of green technology innovation in the process of environmental regulation in the transformation of industrial structure was obviously inconsistent with different urban growth cycles. In 2013~2016, the effect of formal and informal environmental regulation on the rationalization and optimization of industrial structure was improved compared with that of 2003~2012, and green technology innovation had mediation effect in promoting the optimization of industrial structure by environmental regulation.