Does the transformation of energy structure promote green technological innovation?A quasi-natural experiment based on new energy demonstration city construction  

作　　者：Chuanming Liu Chang Tang Yiding Liu 

机构地区：[1]School of Economics,Shandong University of Finance and Economics,Jinan 250014,China [2]School of Economics&Management,Changsha University of Science and Technology,Changsha 410076,China [3]School of Economic and Management,Southeast University,Nanjing 211189,China

出　　处：《Geoscience Frontiers》2024年第3期373-388,共16页地学前缘（英文版）

基　　金：the National Social Science Fund of China(22CJL004).

摘　　要：New energy development is essential to achieving carbon peaks and neutrality and promoting green technological innovation.Identifying the causal relationship between new energy demonstration city construction and green technological innovation is crucial for the expansion and promotion of new energy demonstration cities.In this study,we take the construction of new energy demonstration cities as a quasi-natural experiment,study their impact on green technological innovation using difference-indifference(DID),and conduct a robustness test using DID after propensity score matching(PSM-DID).The research results indicate the following:First,energy structure optimization can significantly improve the level of urban green technological innovation(this result was shown to be valid using PSM-DID and other tests involving the effects of placebo and instrumental variables).Second,new energy demonstration city construction mainly improves the level of urban green technological innovation through technology research and development,the improvement of the industrial innovation environment,and the promotion of environmental performance.Third,the impact of energy structure optimization on green technological innovation has regional,financial,and economic development heterogeneity.Finally,new energy demonstration city policy affects the flow of capital,labor,technology,and other production factors to pilot areas according to new energy demonstration city policy,forming a“siphon effect”.The carbon reduction effect of new energy demonstration city construction is greater than its pollution reduction effect.Given the results of the study,policy recommendations to promote the expansion of new energy demonstration cities are proposed.

关 键 词：New energy demonstration city Green technological innovation Theoretical mechanism DIFFERENCE-IN-DIFFERENCE 

分 类 号：P467[天文地球—大气科学及气象学]