Abstract:
Different types of environmental regulations will have different impacts on the allocation of resources in the market, which in turn will lead to significant differences in carbon emissions efficiency. Based on the perspective of all factors, non-radial and non-angle SBM super-efficiency models were adopted to measure the carbon emission efficiency of 30 provinces and cities in China from 2008 to 2016. On this basis, the differences of the impacts of three types of environmental regulations on carbon emission efficiency in different regions of China were explored. The results show that:(1)At the national level, there is a "U-shaped" change trend between the intensity of command control, market incentive and comprehensive environmental regulation and carbon emission efficiency, that is, as the intensity of environmental regulation increases, the dominant force of influence changes from "retrogression effect" to "anti-driving effect". (2)At the regional level, the command-controlled average regulation level in the eastern region has crossed the inflection point of the curve, realizing the "anti-driving effect", while the value of the inflection point has not yet been exceeded in the central and western regions. At present,the "retrogression effect" is still in the dominant position for market incentives and voluntary conscious environmental regulation. (3)In the three major regions, the eastern region relies on market incentives to solve environmental problems more efficiently, while for the central and western regions, command-and-control environmental regulation is still in the dominant position and plays a more effective role. This paper puts forward policy suggestions such as choosing scientific environmental regulation tools and reasonable environmental regulation intensity for different regions.