城市规模、集聚经济与资本的空间极化——基于我国县级以上城市面板数据的实证研究

Urban Scale,Agglomeration Economy and Spatial Polarization of Capital:Empirical Study Based on Panel Data of Cities above County Level in China

文章通过新经济地理学的资本流动模型分析了城市规模对资本积累的影响机制,并利用2003-2009年我国653个县级以上城市面板数据进行了实证检验。结果表明集聚效应导致大城市以更高的效率吸收资本,城市规模增长促进了资本深化;控制其他因素后,人口规模增加1%推动城市人均资本存量平均增加0.22%,而省会以上城市的管理职能放大了城市规模的作用。

This paper employs a footloose capital model based on new e conomic geography to analyze the effect of urban scale on capital accumula tion, and makes an empirical study by using the panel data of 653 cities a bove county level from 2003 to 2009. The results show that the absorption of capital in large cities becomes more efficient owing to the agglomeration effect, so the increase in urban scale promotes capital deepening; after the control of other factors, a population scale increase of 1% generates an ur ban per capita capital stock increase of 0.22 %, and the management function of cities above province level strengthens the influence of urban scale.