数字经济对区域经济增长收敛的影响研究

Research on the Influence of Digital Economy on the Convergence of Regional Economic Growth

共享型经济的发展对落后地区经济增长和推动共同富裕具有重大意义。本文以2013~2022年长江经济带的110个城市为研究样本,将数字经济纳入空间杜宾模型分析框架,实证考察数字经济对区域经济增长收敛的影响。研究发现:(1)长江经济带城市的经济增长总体上呈明显的收敛态势,数字经济的发展能够显著促进经济增长收敛,且这一结论在替换空间权重矩阵及解释变量后依然成立;(2)长江经济带城市经济增长的收敛性存在一定的空间溢出效应,且数字经济对经济增长收敛的促进作用也存在明显的空间溢出效应;(3)从空间维度来看,数字经济对经济增长收敛的促进作用在长江经济带上游城市影响最大,中游城市次之,下游城市最小;(4)从时间维度来看,2013~2022年期间长江经济带的收敛速度呈现逐步增长的趋势,且数字经济对经济增长收敛的影响具有明显的缓冲期,2016年以后其促进作用才显现出来。

The development of Shared Economy is of great significance to the economic growth in backward areas and the promotion of common prosperity.This paper takes 110 cities in the Yangtze River Economic Belt from 2013 to 2022 as research samples,integrates digital economy into the spatial Solow model analysis framework,and explores the impact of digital economy on economic growth convergence.The findings are as follows:(1)the economic growth of cities in the Yangtze River Economic Belt shows an obvious convergence trend on the whole,and the development of digital economy can significantly promote the convergence of economic growth,and this conclusion is still valid after replacing the spatial weight matrix and the explanatory variables.(2)Under the square of inverse distance weight matrix,there is a spatial spillover effect on the convergence of economic growth in the Yangtze River Economic Belt,and the digital economy also has an obvious spatial spillover effect on the promotion of economic growth convergence.(3)From a spatial dimension,the promotional effect of the digital economy on economic growth convergence is most pronounced in the upstream cities of the Yangtze River Economic Belt,followed by the midstream cities,and is least impactful in the downstream cities.(4)From the perspective of time,the convergence speed of the Yangtze River Economic Belt shows a trend of gradual increase during 2013~2022,and the impact of digital economy on the convergence of economic growth has an obvious buffer period,and its promoting effect only appears after 2016.