区域差异视角下环境规制的生态创新效应研究

The Ecological Innovation Effect of Environmental Regulation:From the Perspective of Regional Differences

生态创新作为推动绿色发展和经济竞争力的一个关键因素正日益受到重视,环境规制对生态创新影响的机制和条件尚存争议,且地理学视角对该问题的关注较少。运用中国地级市层面的环境规制和生态创新数据,实证分析了环境规制的区域差异和空间相关性对生态创新的影响及其门槛效应。结果表明,环境规制的生态创新效应存在显著的空间差异性,东部地区的促进作用明显,而其他地区多表现为抑制或不相关;环境规制的空间相关性对生态创新产生积极作用;环境规制强度和生态创新之间呈现＂U＂型关系,环境规制、经济发展水平、研发投入等因素存在门槛效应,只有跨越这些门槛时,＂波特假说＂才能成立。

Eco-innovation（EI） is a key factor to promote sustainable development and region competitiveness, and is attracting increasing attention. The mechanism and conditions of the impact of environmental regulation on EI are still controversial. Using China＇s environmental regulation and EI data at the prefecture level, this paper empirically analyzed the impact of regional difference and spatial correlation on the relationship of environmental regulation and EI and its threshold effect. The results show that the EI effect of environmental regulation exists significant spatial variability. In the eastern China, the environmental regulation promote EI, while other areas were inhibited or not; The spatial correlation of environmental regulation has a positive effect on ecological innovation; There is a ＂U＂ relationship between environmental regulation and EI. Environmental regulation, economic development level, RD investment and other factors have threshold effects. Only when these barriers are crossed, the ＂Potter hypothesis＂ can be established.