数字经济对区域协调发展的影响效应及作用机制

Impact of Digital Economy on Regional Coordinated Development

数字经济所引发的技术创新与进步具有渗透性特征,能够改变生产要素比例与种类,逐渐替换传统落后生产要素,重构分工协作体系,提高生产力,是区域协调发展的重要依托。基于数字经济对产业结构升级影响的视角,利用2006~2019年中国省级面板数据,在测度数字经济与区域协调发展综合水平的基础上,运用面板固定效应模型、空间计量模型与中介效应模型,多维度实证检验数字经济影响区域协调发展的效应及作用机制,结果表明:数字经济显著促进了区域协调发展,但存在明显的区域异质性与空间溢出效应,相关结论在稳健性检验与内生性处理后依然成立;产业结构升级是数字经济影响区域协调发展的重要作用机制。具体而言,在区域异质性上,东部地区数字经济对区域协调发展的积极效应强于中西部地区;空间溢出分析显示,我国不仅存在外生的数字经济交互效应,也存在区域协调发展的内生交互效应;传导机制分析则表明,助推产业结构升级是数字经济释放区域协调发展红利的重要路径。

The technological innovation and progress brought about by digital economy is permeable.It can change the proportion and type of production factors,gradually replace traditional backward production factors,remodel the labor division and coordination system,and improve productivity.It is an important basis for regional coordinated development.Based on the survey of the coordinated development of digital economy and regional economy in China with the provincial panel data from 2006 to 2019,this paper makes empirical analysis of the impact of digital economy on regional coordinated development and its working mechanism from different perspectives with fixed effect model,spatial econometric model and mediating effect model.The findings are as follow.Digital economy significantly contributes to coordinated regional development,but there are obvious regional difference and spillover effects.Relevant conclusions are supported by the robustness test and endogenous treatment.The upgrade of industrial structure is an important mechanism of digital economy affecting regional coordinated development.Specifically,digital economy has stronger positive impact on regional coordinated development in eastern regions than in central and western regions.Spatial spillover analysis shows that there are not only exogenous digital economy interaction effects in China,but also endogenous interaction effects of regional coordinated development.The analysis of the conduction mechanism shows that prompting the upgrade of industrial structure is an important mechanism for digital economy to advance regional coordinated development.