关键词: 城市群, 人口空间集聚, 经济增长

Abstract: Population spatial agglomeration is the basis for the economic growth of urban agglomerations in China. A dynamic panel regression model is established on the basis of the theoretical derivation of the relationship between population spatial agglomeration and economic growth in urban agglomerations. The study has three major findings. (1) The spatial concentration of population in urban agglomerations in China has a significant impact on the economic growth of urban agglomerations. (2) The effect of population agglomeration on economic growth in urban agglomerations is a non-linear “inverted U-shaped” relationship. At the initial stage of population agglomeration, the population agglomeration to the core cities within urban agglomerations is conducive to improving the economic efficiency of urban agglomerations, and after the population agglomeration reaches a certain level, the economic efficiency will be weakened. (3) Industrial structure optimization and technological progress are useful for the economic growth of urban agglomerations. Capitalizing on the urban agglomeration dividend, it is important to reduce the negative externalities of excessive spatial concentration of population in urban agglomerations, thus promoting high-quality development of urban agglomerations.

Keywords: Urban Agglomeration, Spatial Agglomeration of Population, Economic Growth