数字基础设施何以赋能农业产业链韧性提升?OACHSSCD

Using the"Broadband China"pilot policy as an exogenous policy shock,this study con-structs an evaluation index system for agricultural industrial chain resilience based on panel data covering 295 prefecture-level cities and districts of municipalities directly administered by the central government in China from 2010 to 2024.A difference-in-differences model is employed to examine the impact of digi-tal infrastructure on agricultural industrial chain resilience and its underlying mechanisms.The results show that digital infrastructure significantly enhances agricultural industrial chain resilience,and this find-ing remains robust across various robustness and endogeneity tests.The policy effect begins to emerge ap-proximately four years after implementation and enters a phase of sustained strengthening after the sixth year.Mechanism analysis indicates that digital infrastructure strengthens agricultural industrial chain resil-ience mainly by promoting agricultural technological innovation,facilitating industrial structure upgrad-ing,and fostering the development of digital inclusive finance.Heterogeneity analysis further reveals that the positive effect is more pronounced in eastern and northeastern China,peripheral regions,non-key en-vironmental protection areas,and cities included in the first batch of pilot programs.