数字经济发展与碳减排——理论推演与实证检验  

Digital Economy Development and Carbon Emission Reduction——Theoretical Deduction and Empirical Test

作　　者：费威[1] 于宝鑫 王维国[1] Fei Wei;Yu Bao-xin;Wang Wei-guo

机构地区：[1]东北财经大学经济学院

出　　处：《经济学家》2022年第11期74-83,共10页Economist

基　　金：国家社会科学基金重点项目“数字经济新业态新模式下食品安全治理机制研究”(22AGL033);国家自然科学基金面上项目“省际能源消费的变系数非参空间面板数据模型研究”(71773012);教育部人文社会科学研究规划基金项目“依托地理标志打造农产品区域品牌的理论解构、实践检验与推进路径研究”(21YJA790015)。

摘　　要：本文探讨了数字经济发展水平对碳减排的影响效应。理论分析上,以绿色索洛模型为分析框架,将数字经济引入其中予以改进拓展,通过理论模型推演提出,随着数字经济发展,碳排放呈倒U型曲线的可能性。实证分析上,使用熵权法构建数字经济发展指标体系,测算了2011—2019年中国30个省份的数字经济指数,并通过双向固定效应模型进行实证分析以验证理论猜想。结果表明:碳排放与数字经济发展水平之间存在显著的倒U型关系;因数字经济发展呈现东部地区优于中西部地区的不均衡特征,异质性分析得出该倒U型关系在数字经济中高发达地区和数字经济低等与欠发达地区均存在。据此,为探索数字经济发展对碳减排的作用关系以及实现“双碳”目标提供了启示。This paper discusses the impact of the development level of digital economy on carbon dioxide emission reduction. For theoretical analysis, this paper takes the green Solow model as an analysis framework into which it introduces digital economy, putting forward the possibility that carbon dioxide emission presents an inverted U-shaped curve with the development of digital economy through theoretical model deduction. For empirical analysis, this paper uses entropy weight method to construct the index system of digital economy development, measures the digital economy index of 30 provinces in China from 2011to 2019 and conducts empirical analysis through two-way fixed effects model in order to check the theoretical conjecture. The results show that there is a significant inverted U-shaped relationship between carbon dioxide emissions and the development level of digital economy. Because the development of digital economy shows the unbalanced characteristics that the eastern region is better than the central and western regions, the heterogeneity analysis shows that the inverted U-shaped relationship exists both in secondary developed and developed regions and in low developed and underdeveloped regions of digital economy. Based on this, the reference inspiration for exploring the impact of the development of digital economy on carbon dioxide emission reduction and achieving carbon peaking and carbon neutrality goals is provided.

关 键 词：数字经济发展 碳减排 倒U型曲线 双向固定效应模型 

分 类 号：F124[经济管理—世界经济]