Abstract
As the important performance of intercity interaction, urban networks have a significant impact on the urban system and economic development of city-regions. However, previous studies have mainly analyzed the structure of a single urban network from a static perspective and lack in-depth analysis of the driving mechanism of network evolution. Based on the headquarters-branch data of companies and patent transaction data, this study uses spatial analysis, social network analysis, and negative binomial regression analysis to explore the structure evolution and proximity mechanism of the urban networks in China. The empirical results were as follows. First, different types of urban networks are characterized by stratification and geographical unevenness, and the evolution of urban networks shows priority linkage and path dependence. Second, the Yangtze River Delta, the Pearl River Delta, and the Beijing–Tianjin–Hebei urban agglomerations shape high-value agglomeration centers but show a differentiated development trend. Third, geographical proximity has a stronger effect on the urban innovation network evolution, but institutional and cultural proximity has a stronger effect on the urban economic network evolution. The comparative study of urban networks not only helps to clarify the structure and characteristics of an urban system but also contributes to a comprehensive understanding of the diversity and complexity of intercity interactions.
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