Embedding central cities into information flow networks enhances the efficiency of factor allocation, forming a crucial strategic leverage for high-quality economic development. Based on Baidu Index data from 2013 to 2022, this study constructs a directed and weighted information flow matrix among central cities and empirically examines the impact and mechanism of information flow network embedding on high-quality economic development. The results show that embedding central cities into information flow networks significantly promotes high-quality economic development. This conclusion remains robust after addressing endogeneity, changing models, and using alternative estimation methods. Mechanism analysis indicates that embedding central cities into information flow networks facilitates the upgrading of factor endowment structures and industrial structures, thereby empowering high-quality economic development. Heterogeneity analysis and quantile regression reveal that, compared with information inflows, central cities’ high-quality economic development benefits more from information outflows. Furthermore, embedding cities in inter-provincial information networks has a stronger promoting effect than embedding them in intra-provincial networks. Compared with non-old industrial cities, old industrial cities gain more from embedding into information flow networks. The higher the level of high-quality economic development, the more pronounced the benefits of network embedding. Therefore, to promote high-quality economic development in central cities, governments should increase investment in communication infrastructure, build high-efficiency, low-latency information flow networks, strengthen urban information circulation, and drive the upgrading of regional factor endowments and industrial structures, thereby empowering high-quality economic development.
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