Empirical analysis of the spatial relationship between urban agglomeration economic network and economic growth based on big data

A reasonable and orderly network space structure is an important support for the coordinated economic development of urban agglomerations. Based on the urban panel data of the three major urban agglomerations in the economic belt from 2010 to 2019, this paper first uses social network analysis methods to quantitatively identify the cyberspace characteristics of the three major urban agglomerations. On this basis, a spatial measurement model was constructed to test the heterogeneous influence of the network space structure and the coordinated economic development of the three major urban agglomerations. The results show that after controlling the relevant influencing factors, the improvement of the urban agglomeration’s spatial network level has a direct promotion effect on its coordinated economic development, but the indirect spatial spillover effects show obvious differences. Among them, the higher the level of networking, the more obvious the positive spatial spillover effect, and the higher the level of coordinated economic development of the urban agglomeration. Therefore, strengthening the network connection between cities and forming a closely connected and functionally complementary urban agglomeration network spatial structure is conducive to giving full play to the positive spatial spillover effect and realizing the coordinated economic development of the urban agglomeration.