【摘要】 在全国统一大市场建设的进程中，如何提升产业链韧性，进而维护国家产业安全，是具有重要意义的研究话题。为此，基于2011—2021年270个城市的面板数据，构建最小二乘估计模型和双重差分模型进行实证分析。结果表明，市场一体化对于产业链韧性具有显著的促进作用，经过一系列稳健性检验后，结论依然成立；机制分析发现，市场一体化可以通过促进产业协同集聚、改善资源错配提升城市产业链韧性；异质性分析表明，在区域优势和政策优势较好、人口规模较大、加入城市群以及产业结构高级化水平较高的组别城市中，市场一体化对产业链韧性的作用更为显著；进一步研究发现，市场一体化可以显著提升地理邻近城市和经济相近城市的产业链韧性。切实把握市场一体化与产业链韧性的内在逻辑，可以为全国统一大市场建设提供理论指导和政策建议，以提升产业链韧性，维护国家产业安全。更多还原

【Abstract】 In the process of building a unified national market,how to enhance the resilience of the industrial chain and maintain national industrial security is an important research topic.Therefore,based on the panel data of 270 cities from 2011 to 2021,the least squares estimation model and the double difference model are constructed for empirical analysis.The results indicate that market integration has a significant promoting effect on the resilience of the industrial chain,and after a series of robustness tests,the conclusion remains robust.Mechanism analysis reveals that market integration can enhance the resilience of urban industrial chains by promoting industrial synergy and improving resource misallocation.Heterogeneity analysis shows that in cities with better regional and policy advantages,larger population size,joining urban agglomerations,and higher levels of industrial structure upgrading,the role of market integration in industrial chain resilience is more significant.Further research has found that market integration can significantly enhance the resilience of industrial chains in geographically adjacent cities and economically similar cities.Effectively grasping the inherent logic of market integration and industrial chain resilience can provide theoretical guidance and policy recommendations for the construction of a unified national market,thereby enhancing the resilience of the industrial chain and maintaining national industrial security.更多还原