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Environmental Regulation and Regional Innovation Efficiency:Quasi-natural Experimental Evidence based on Carbon Emission Trading Pilot

YANG Lu-xin1,2,LIU Yu-cheng3,4   

  1. (1.Department of International Trade and Economics, Hongshan College, Nanjing University of Finance and Economics, Nanjing 210003,China;2. Institute of International Economics, University of International Business and Economics, Beijing 100029,China;3. School of Management Engineering,Capital University of Economics and Trade, Beijing 100070,China;4. National Economic Management Experimental Center of Nanjing University of Finance and Economics, Nanjing 210023, China)
  • Received:2020-07-07 Online:2020-09-21

Abstract: This paper took the “Notice on Piloting Carbon Emissions Trading” issued by the National Development and Reform Commission in 2011 as a quasi-natural experiment. Based on the method of instrumental variables, the paper more scientifically verified the relationship between environmental regulation and regional innovation efficiency. Research found that there is a U-shaped nonlinear relationship between environmental regulation and substantive innovation efficiency, environmental regulation and strategic innovation efficiency. And about 88.79% and 90.61% of the observation points are in the stage of environmental regulation will inhibit the regional innovation efficiency.The results of the heterogeneity analysis show that the threshold of environmental regulation intensity in the developed eastern regions is relatively high. Improving the level of human capital, improving the degree of openness, enhancing financing capacity, and strengthening government intervention can alleviate the negative impact of environmental regulation. The analysis of the mechanism of action found that the intensity of innovation investment, optimization of capital factor allocation, and technological progress are the main ways for environmental regulation to influence innovation efficiency in regions. In addition, environmental regulation not only has the effect of first suppressing and promoting the local substantive innovation efficiency, but also has the synergistic effect of promoting and suppressing the substantial innovation efficiency of neighboring provinces,reflecting the influence of regional environmental regulation intensity difference.

Key words: environmental regulation, substantial innovation efficiency, strategic innovation efficiency, difference in differences