The Impact of the "Broadband China" Pilot Policy on the Resilience of Enterprise Supply Chains: A Quasi-Natural Experiment Based on the Difference-in-Differences Model

Improving the resilience of supply chain is an important cornerstone for maintaining the steady development of enterprises, and the "Broadband China" pilot policy and strategy provides new driving force for enhancing the resilience of supply chain of enterprises. Using the panel data of A-share listed companies from 2012 to 2023 as the research sample, this paper empirically examines the impact and mechanism of digital infrastructure construction on enterprises' supply chain resilience by taking the "Broadband China" pilot policy as A quasi-natural experiment. The results show that: (1) The "Broadband China" pilot policy improves enterprises' supply chain resilience, and the conclusion is still valid after the robustness tests such as parallel trend test, placebo test, changing the explained variable, PSM-DID and changing the sample interval; 2) The results of heterogeneity analysis show that in the eastern region, state-owned enterprises and non-job integration enterprises, the supply chain resilience of Chinese enterprises is more significantly affected by the "Broadband China" pilot policy. 3) The results of mechanism analysis show that the "Broadband China" pilot policy enhances enterprises' supply chain resilience by improving enterprises' innovation ability, promoting the establishment of partnership and promoting supply chain synergy. The research conclusions are helpful to provide empirical evidence and management enlightenment for promoting the high-quality development of supply chain of Chinese enterprises.