数字经济对碳排放的影响研究——以三大城市群为例
Research on the Impact of Digital Economy on Carbon Emissions—Taking the Three Major Urban Agglomerations as an Example

温室气体的排放是引致世界气候恶化的主要原因，同时也是各国亟待解决的重要问题之一。本文基于三大城市群2011~2019年的地市级数据，以数字经济发展为主要核心解释变量，对比考察分析数字经济对碳排放的影响效应。结果表明：数字经济发展与碳排放之间存在倒U型的影响效应，这种效应在不同的城市或存在屏蔽效应或遮掩效应；人口的聚集和城镇化的增高会促进二氧化碳的排放，这在发达城市中尤为明显；产业结构的高级化和合理化对抑制碳排放在不同城市群有着不同作用效果，本文认为与城市群的产业职能有关。
The emission of greenhouse gases is the main cause of global climate degradation, and it is also one of the important issues that countries urgently need to solve. This article is based on prefec-ture level data from three major urban agglomerations from 2011 to 2019, with the development of the digital economy as the main core explanatory variable, to compare and analyze the impact of the digital economy on carbon emissions. The results indicate that there is an inverted U impact effect between the development of the digital economy and carbon emissions, which may have shielding or masking effects in different cities; the aggregation of population and the increase in urbanization will promote carbon dioxide emissions, which is particularly evident in developed cities; the advancement and rationalization of industrial structure have different effects on suppressing carbon emissions in different urban agglomerations, and this article believes that it is related to the industrial functions of urban agglomerations.