数字服务贸易发展水平对碳排放影响的实证分析——基于中国省级层面的面板数据

An empirical study of impact of development level of digital service trade on carbon emissions

基于中国2010—2019年30个省份的面板数据,运用双向固定效应模型实证考察了数字服务贸易发展水平对碳排放的影响。研究发现数字服务贸易发展水平能够显著抑制碳排放,通过替换被解释变量、核心解释变量以及进行动态面板回归等检验后结论依然成立。数字服务贸易发展水平对碳排放的影响存在异质性,按地理区域分组回归发现中国中部和西部地区数字服务贸易发展水平对碳排放的影响程度强于东部地区,按碳排放程度高低分组回归发现数字服务贸易发展水平的碳减排效用在碳排放量较高的地区表现更为明显。

Based on the panel data of 30 provinces in China from 2010 to 2019,this paper empirically examines the impact of the development level of digital service trade on carbon emissions with a two-way fixed effect model.The study finds that the development level of digital service trade can significantly restrain carbon emissions,and the conclusion is still valid after the substitution of explained variables,core explanatory variables and dynamic panel regression tests.There is heterogeneity in the impact of the development level of digital service trade on carbon emissions.According to the regressions grouped by geographical regions,it finds that the development level of digital service trade has a stronger impact on carbon emissions in the central and western regions than that in the eastern region in China.According to the regressions grouped by the level of carbon emissions,it finds that the carbon emission reduction effect of the development level of digital service trade is more obvious in regions with higher carbon emissions.