Measuring the Development of Urban Agglomerations in China：Based on 19 Major Urban Agglomerations

Abstract：The study of Chinese urban agglomerations is mainly based on the local perspective of geography, with insufficient consideration of the overall economic and social development, and a lack of grasp of the overall development law of Chinese urban agglomerations. Based on the analysis of economic and social development indicators of 19 major city clusters in China, we summarize the overall development status of Chinese city clusters in terms of factor agglomeration, development activity and sustainability, and evaluate and decompose the comprehensive development status of each city cluster by using the entropy-weighted TOPSIS method and the Dagum Gini coefficient. On the whole, major city clusters occupy an absolute main position in economic development, but the economic driving role has declined; from the difference between city clusters, the development difference of major city clusters is always highlighted, the optimization and enhancement category of city clusters has an absolute advantage in the level of development, and the gap between the development and growth category and the cultivation and development category of city clusters is relatively small; from the difference within the city clusters, the development level of the city clusters is very different, and the development level of city clusters is very different from that of the city clusters. From the point of view of the differences within the city clusters, the development level within the major city clusters varies greatly, and the polarization of the central cities within the city clusters has increased.

Words：Urban Agglomeration; Agglomeration of Factors; Economic Development; Sustainable; Variance Decomposition

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