数字经济赋能扩大内需的影响机制研究——基于多重中介模型

The Impact Mechanism of Digital Economy in Facilitating the Expansion of Domestic Demand:Based on a Multiple Mediation Model

数字经济为我国实施扩大内需战略提供重要动力。文章基于2013—2021年省级面板数据分析数字经济和内需发展水平的时空演化特征,通过固定效应和中介效应模型的实证检验,探究数字经济赋能扩大内需的影响机制。研究发现:数字经济能够有效提升区域内需发展水平,在一系列稳健性检验之后,这一结论仍然成立。此外,数字经济影响内需发展存在区域异质性,对中西部和低内需发展水平地区的促进作用更强。机制分析表明:技术创新、产业结构升级以及收入增加是有效的赋能机制;数字经济通过促进技术创新能力提高、产业结构升级和农村居民增收拉动消费需求和投资需求,从而助力扩大内需。

Digital economy provides an important impetus for the implementation of the strategy to expand domestic demand in China.This essay analyzes the spatiotemporal evolution characteristics of digital economy and the level of development of domestic demand using provincial panel data from 2013 to 2021.By conducting empirical tests utilizing fixed effects and mediation effect models,it investigates the impact mechanism of the digital economy in facilitating the expansion of domestic demand.Research findings:Digital economy can significantly boost the growth of regional domestic demand.This conclusion remains robust even after undergoing a series of robustness tests.In addition,digital economy's impact on domestic demand development exhibits regional heterogeneity,with a stronger promoting effect on the central and western regions and areas with lower levels of domestic demand development.Mechanism analysis shows that:Technological innovation,upgrading of industrial structure,and income growth serve as effective enabling mechanism.The digital economy boosts domestic demand through the promotion of technological innovation,upgrading of industrial structure,and elevation of rural residents'income,thereby stimulating consumption and investment demand.