The impact of carbon emissions trading policy on carbon emission efficiency in Chinese cities:Evidence from a quasi-natural experiment  

作　　者：Keliang Wang Yuanjie Qiao Liwei Ling Ziheng Zhao Kun Liu 

机构地区：[1]School of Economics,Ocean University of China,Qingdao,266011,China [2]Economic Management Center,Chengdu Aircraft Design&Research Institute,Chengdu,610041,China [3]School of Economics,Southwestern University of Finance and Economics,Chengdu,611130,China [4]School of Accounting,Southwestern University of Finance and Economics,Chengdu,611130,China

出　　处：《Chinese Journal of Population,Resources and Environment》2023年第3期121-136,共16页中国人口·资源与环境（英文版）

基　　金：the financial support provided by the National Natural Science Foundation of China(Grant number.72373138 and number.71973131);Major Project of National Social Science Foundation of China(Grant number.19VHQ 002).

摘　　要：Based on a panel dataset spanning from 2003 to 2019 and encompassing 284 prefecture-level cities in China,this study treats the implementation of the carbon emissions trading policy(CETP)as a quasi-natural experiment.In addition,it employs a spatial difference-in-differences(DID)framework to quantify both the direct and spatially mediated impacts of CETP on urban carbon emission efficiency(CEE).The investigation further delves into the underlying channels of influence and variations within this context.The findings demonstrate that CETP effectively enhances CEE within the cities chosen for piloting;however,it concurrently dampens CEE in nonpiloting neighboring cities.These conclusions remain robust across diverse sensitivity tests.The analysis of mechanisms reveals that CETP’s influence on urban CEE primarily operates through the avenues of technological innovation and optimization of energy structure.Moreover,the study of variances discloses that CETP’s direct effect significantly advances CEE in eastern,old industrial base,and central cities.In terms of indirect effects,a pronounced adverse spatial spillover effect is observed in eastern and old industrial base cities,while noteworthy positive spatial spillover effects emerge in central cities.Notably,the spatial extent of CETP’s influence on urban CEE declines after reaching a distance of 900 km.These insights furnish valuable guidance for China in refining its nationwide carbon market and expediting the shift toward a low-carbon economy.

关 键 词：CETP CEE Spatial DID model Spatial spillover effect 

分 类 号：X321[环境科学与工程—环境工程]