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利用2009年世界银行提出的“3D”分析框架,基于2005-2013年成渝经济区县域数据,分析了密度、距离、分割三大经济地理特征对成渝经济区县域经济增长差异的影响.考虑到密度变量的内生性问题和各县域经济增长的空间效应,采用2SLS估计模型和空间计量模型分别对估计结果进行纠正.研究发现,密度对县域经济增长的影响显著为正,距离对其显著为负,以户籍城镇化率衡量的分割对县域经济增长的影响显著为正,而以民族差异衡量的分割对其无显著影响.这个结论为审视成渝经济区经济增长差异提供了一个系统性视角,对促进成渝经济区区域协调发展有一定指导意义.
Based on the “3D ” analysis framework proposed by the World Bank in 2009 and based on the county data of Chengdu-Chongqing Economic Zone from 2005 to 2013, this paper analyzes the impact of the three economic and geographical features of density, distance and segmentation on the economic growth in the Cheng-Yu Economic Zone Considering the endogeneity of density variable and the spatial effect of economic growth in each county, 2SLS estimation model and space econometrics model are respectively used to correct the estimation results.It is found that the influence of density on the economic growth of the county is significantly positive and the distance to its And negatively impacted by the urbanization rate of household registration, the impact of segmentation on county economic growth is significantly positive, while the division measured by national differences has no significant effect on this. This conclusion provides a system for examining the economic growth difference in Chengdu-Chongqing Economic Zone Sexual perspective, to promote the coordinated development of Chengdu-Chongqing Economic Zone has some guiding significance.