数字经济对经济增长质量的影响研究——基于长三角市级面板数据的实证分析

Research on the Influence of Digital Economy on the Quality of Economic Growth——Empirical analysis based on municipal panel data of Yangtze River Delta

加快数字经济发展是实现经济高质量发展的重要途径。本文基于2011-2020年长三角41个城市的面板数据,围绕“数字经济对经济增长质量的影响”这一主题展开一系列机理分析和实证检验。实证结果表明:数字经济发展显著提升长三角城市经济增长质量;数字经济的发展对长三角都市圈内城市经济增长质量的提升促进效果显著;机制效应检验发现:数字经济可以通过产业结构升级和固定资产投资比重增加两条路径提升城市经济增长质量。基于此,应加大数字基础设施建设,推动数字化发展,优化产业结构,推动产业结构升级,加强城市群内部联系,更好推动城市经济增长质量的提升。

Accelerating the development of digital economy is an essential way to achieve high-quality economic development.Based on the panel data of 41 cities in the Yangtze River Delta from 2011 to 2020,this paper conducts a series of mechanism analysis and empiri-cal tests around the theme of“the impact of digital economy on the quality of economic growth”.The empirical results show that the development of digital economy significantly improves the quality of urban economic growth in the Yangtze River Delta;The development of digital economy has a significant effect on improving the quality of urban economic growth in the Yangtze River Delta metropolitan area.The mechanism effect test shows that digital economy can improve the quality of urban economic growth through upgrading of industrial structure and increasing proportion of fixed assets investment.This paper suggests that it is necessary to increase the construction of digital infrastructure,promote digital development,optimize the industrial structure,promote the upgrading of industrial structure,strengthen the internal connections of urban agglomeration,and better promote the improvement of the quality of urban economic growth.