数字经济对产业链韧性的影响研究

Research on the Impact of Digital Economy on the Resilience of Industrial Chain

文章聚焦于探讨数字经济如何影响产业链韧性水平提升。以2011-2021年中国289个城市的面板数据为研究样本,运用熵值法测算产业链韧性指数及数字经济发展水平,综合利用Tobit模型、门槛效应模型和中介效应模型研究了数字经济对产业链韧性的影响效果及内在传导机制。结果显示:数字经济对产业链韧性提升有显著的促进作用,这一结论在考虑内生性等一系列稳健性检验后依然成立;技术创新和产业结构升级是数字经济促进产业链韧性提升的重要机制;数字经济对产业链韧性提升的影响呈边际效应递减的非线性特征。

The article focuses on exploring how the digital economy affects the improvement of industry chain resilience.Taking the panel data of 289 cities in China from 2011-2021 as the research sample,this paper uses the entropy method to measure the industrial chain resilience index and the development level of the digital economy,and comprehensively uses the Tobit model,threshold effect model and intermediary effect model to study the impact of the digital economy on the industrial chain resilience and the internal transmission mechanism.The results show that the digital economy has a significant promoting effect on the resilience of the industrial chain,and this conclusion still holds true after considering a series of robustness tests such as endogeneity;Technological innovation and industrial structure upgrading are important mechanisms for the digital economy to promote the resilience of the industrial chain;The impact of the digital economy on enhancing the resilience of the industrial chain exhibits a non-linear characteristic of diminishing marginal effects.