数字经济与实体经济融合的碳减排效应——来自我国省域的经验证据

Carbon Emission Reduction Effect of Integrating Digital Econom with Real Economy——Empirical Evidence from China’s Provinces

基于2012—2021年中国30个省份(西藏和港澳台地区除外)的面板数据,实证研究数字经济与实体经济融合发展影响碳排放的空间效应和作用机制。结果表明:我国碳排放量不断增加;数字经济与实体经济融合发展趋势良好,但区域之间融合发展水平差距明显;数字经济与实体经济融合发展对碳排放呈现出先促进后抑制的倒“U”型影响以及先抑制后促进的“U”型溢出效应,且影响效应存在区域异质性;数字经济与实体经济融合发展可通过推进产业结构升级、降低能源消耗强度影响碳排放。

Based on the panel data from 30 provinces(excluding Tibet,Hong Kong,Macao,and Taiwan)from 2012 to 2021,the paper empirically studied the spatial effect and action mechanism of the integrated development of digital economy and real economy affecting carbon emission.The results showed that:the carbon footprints in China have increased constantly.The integrated development of digital economy and real economy has also developed well,while the development level of integration among regions showed a significant disparity.The integrated development had an inverted“U-shaped”effect and an“U-shaped”spillover effect on carbon emission,and the effect had regional heterogeneity.In addition,the action channels of the integrated development included promoting industrial structural upgrade and reducing energy intensity.