空间依赖性、非线性与城市经济增长趋同

Spatial Dependence,Nonlinearity and Urban Economic Convergence

本文使用参数和半参数空间计量模型研究空间依赖性对中国城市经济增长趋同的影响,以及城市经济增长行为的非线性。研究发现,空间依赖性有利于城市经济增长趋同,城市经济增长不仅受自身初始收入水平和人口增长率、投资率的影响,还受到周边城市的初始收入水平、人口增长率、投资率和经济增长的影响。人口增长率、投资率的非线性特征随周边的城市人口增长率、投资率的变化而变化,揭示出城市密集区具有投资效率高、人口吸纳能力强的特点。

In this paper parametric and semiparametric spatial econometric models are employed to analyse the contribution of spatial dependence of economic growth to china＇s urban economic convergence and the nonlinearity of growth behavior. The findings reveal that spatial dependence of economic growth is conducive to china＇s urban economic convergence. Urban economic growth depend critically on initial per capita, population growth rate, investment ratio, and economic growth rate of nearby urbans, rather than just on its own initial per capita, population growth rate and investment ratio. The result provide evidence of nonlinearity in the effect of population growth and investment ratio. What＇s more, the nonlinearity changing with nearby urbans＇s population growth rate and investment ratio, reveal that urban compact district have better investment efficiency and better absorbing ability of population.