摘要
Abstract
Reducing carbon emissions with digital economy is an important embodiment of developing new quality productivi-ty.From the perspective of new quality productivity,the"digital"and"green"elements of economic development are promi-nent,and it is of great practical significance to explore the impact of digital economy on carbon emissions.In this paper,digital e-conomy and carbon emissions are integrated into the same analytical framework by constructing mathematical models,and spatial Durbin model,threshold space Durbin model and semi-parametric threshold space Durbin model are used to systematically analyze the mechanism and path of the impact of digital economy development on carbon emissions in various provinces in China from 2011 to 2021.The results show that the spatial spillover effect between digital economy and carbon emissions is significant.Local carbon emissions can affect neighboring carbon emissions through the combined effects of geographical location,economic correlation and e-conomic geography.The spatial lag term of digital economy has a threshold effect.When the marketization level exceeds the thres-hold value,the digital economy will promote the growth of carbon emissions in the surrounding areas to a larger extent.Heterogeneity analysis reveals that regardless of whether it is the eastern,central or western regions,the digital economy significantly suppresses local carbon emissions and promotes adjacent carbon emissions.Meanwhile,after marketization exceeds the threshold value,the effect of the digital economy on adjacent carbon emissions varies in different regions.After setting the digital economy as a non-para-metric item,it is found that it has an obvious nonlinear effect on carbon emissions,which is generally inverted"N"type.The re-search conclusion provides strong support for our country in promoting the development of digital economy and realizing the double carbon goal.关键词
数字经济/碳排放/空间效应/门限效应/半参数/市场化水平/区域异质性/绿色发展Key words
digital economy/carbon emissions/spatial effect/threshold effect/semi-parameter/marketization level/regional heterogeneity/green development分类
经济学
