数字技术赋能粮食供应链韧性的空间异质性：区域差异与政策适配

The Spatial Heterogeneity of Digital Technology Empowering Grain Supply Chain Resilience: Regional Differences and Policy Adaptation

摘要: 本文基于2013~2023年中国30个省份的面板数据，构建了粮食供应链韧性与数字技术发展水平的综合评价指标体系，利用双向固定效应模型实证检验了数字技术对粮食供应链韧性的赋能效应。研究发现，数字技术对粮食供应链韧性具有显著的正向促进作用，且经过一系列稳健性检验后结论依然成立。机制分析表明，互联网普及率在其中发挥了部分中介作用。异质性分析显示，赋能效果在粮食主销区最为显著，主产区和产销平衡区次之。文章最后根据不同功能区的定位提出了差异化的政策建议。

Abstract: Based on panel data from 30 Chinese provinces spanning 2013~2023, this study constructs a comprehensive evaluation index system for grain supply chain resilience and digital technology development. Using a two-way fixed effects model, it empirically examines the enabling effect of digital technology on grain supply chain resilience. The findings reveal that digital technology has a significant positive promoting effect on grain supply chain resilience, a conclusion that remains robust after a series of stringent tests. Mechanism analysis indicates that internet penetration plays a partial mediating role in this relationship. Heterogeneity analysis shows that the enabling effect is most pronounced in major grain consumption regions, followed by major production regions and production-consumption balanced regions. Finally, the paper proposes differentiated policy recommendations based on the distinct functional positioning of each region type.