数字经济发展赋能绿色经济增长:后发优势与隧道效应OACHSSCDCSTPCD

This paper measures the comprehensive index of digital economy development and the green economy growth in-dex based on carbon emission efficiency of 281 cities at prefecture level and above in China,then analyzes and explores the mech-anism of digital economy enabling green economy growth from the perspective of technological progress,and finally demonstrates the driving factors and late-mover advantages of digital economy development of cities with low digital degree from the perspective of relative gap.The findings go as follows:(1)Digital economy can significantly promote the growth of green economy,and it is an important factor in improving carbon emission efficiency and promoting high-quality development.(2)Digital economy can enable green economic growth by promoting technological progress.(3)Digital economy has a late-mover advantage in relatively back-ward cities.The development of digital economy is an important means to narrow the gap between cities and achieve regional coor-dination.(4)There is a"tunnel effect"in cities with relatively backward digital economy development,which is a key factor for relatively backward cities to develop digital economy.