基于2013—2020年省级宏观数据和数字经济指数深入分析数字经济发展对居民消费的影响，并从市场供求两端分析其内在作用机制。研究发现：数字经济能够促进居民消费“扩容提质”，且这一作用在数字经济和消费不同维度下仍然显著，异质性分析进一步发现数字经济对中西部与低市场化程度地区的促进作用更强，呈现数字益贫性特征；动态叠加效应表明，数字经济在滞后期依然对居民消费存在促进作用，并且对居民消费“扩容”作用明显高于“提质”作用；机制分析表明，居民人均可支配收入和收入差距、创新产出与产业结构升级分别在市场需求和供给端发挥着中介效应。因此，要继续发挥数字经济的包容性增长作用，大力推进科技创新，实现产业结构升级，推动实现消费型经济增长模式。

Based on an in-depth analysis provincial macro data and digital economy indices from 2013 to 2020, the study examines the impact of digital economy development on residents' consumption and analyzes its underlying mechanism from both market supply and demand . The research findings indicate that digital economy can promote the “expansion and improvement”of residents’ consumption, and this effect remains significant in different dimensions of the digital economy and consumption. The heterogeneity analysis further reveals that the the promotion effect of the digital economy is stronger in the central and western regions and low marketization areas , with a characteristic of digital poverty alleviation.The dynamic superimposed effect demonstrates that digital economy continues to have a boosting effect on residents' consumption in the lag period.Furthermore, the “expansion effect”on residents' consumption is significantly higher than the “improvement effect”. The mechanism analysis reveals that per capita disposable income, income disparity, innovation output and industrial structure upgrading exert a Mesomeric effect in market demand and supply respectively. Hence, in order to continue harnessing the inclusive growth of the digital economy, it is of necessity to vigorously promote scientific and technological innovation , achieve industrial structure upgrading and promote the transition towards a consumption-driven economic growth model.

F126.1

国家社会科学基金一般项目（18BJY121）；中国博士后科学基金面上资助项目（2021M692332）