Based on the influence mechanism of digital economy agglomeration on carbon productivity,a panel threshold effect regression model was constructed to empirically test the double threshold effect and regional heterogeneity of digital economy agglomeration on carbon productivity.The results show that digital economy agglomeration has a"N-type"nonlinear effect of"up-down-up"on carbon productivity in China and the eastern region,while the central and western regions only show a nonlinear positive promoting effect,and the promoting effect of the central region is gradually weakened,the western region gradually enhanced.The influence of digital economy agglomeration on carbon productivity showed regional heterogeneity in east,central and western regions,representing a trend of"East＞Central＞West".The agglomeration of digital economy shows a trend of fluctuating convergence on the whole,and the whole country and the central and western regions show a fluctuating upward trend,while the eastern region shows a slow fluctuating downward trend,indicating that China's digital economy is developing towards a trend of regional coordination.The research and development investment of digital technology and carbon emission reduction technology should be strengthened;the differentiated development of digital economy agglomeration should be promoted according to local conditions,and the spatial layout of digital economy agglomeration in the eastern and western regions should be scientifically optimized,so as to promote the realization of the"dual-carbon"strategic goal.
关键词
数字经济集聚/碳生产率/面板门槛效应模型/区域异质性
Key words
digital economy agglomeration/carbon productivity/panel threshold effect model/regional heterogeneity
维普
万方数据