微观基站映射产业韧性:数字基础设施与生产性服务业全球价值链的实证检验OACHSSCD

In the context of intensified global external shocks,it is of great significance to enhance the resilience of the glo-bal value chain of producer services.Based on the matching samples of micro 4G base station data of 51 countries(regions)and Asian Development Bank Multi-Regional Input-Output(ADB-MRIO)data from 2014 to 2024,this paper takes 2020 as the reference year of common external shocks,measures the global value chain resilience of producer services from the perspective of dynamic re-covery and value chain extension,and empirically tests the impact of digital infrastructure and its mechanism of action.The study finds that:(1)digital infrastructure significantly improves the global value chain resilience of producer services;(2)Its role is mainly achieved by promoting the agglomeration of high-skilled R&D personnel,enhancing the industry influence coefficient and reducing trade costs.(3)This effect is relatively stronger in knowledge-intensive service industries,non-Organization for Eco-nomic Cooperation and Development(OECD)countries,Regional Comprehensive Economic Partnership(RCEP)agreement mem-ber countries and countries along the Belt and Road.The research shows that digital infrastructure not only helps to reduce cross-border service transaction friction,but also helps to enhance the repair and adaptability of producer services in an uncertain environ-ment.