成渝地区双城经济圈县域经济差异时空演变研究

Research on the Spatio-temporal Evolution of County Economic Disparity in Chengdu-Chongqing Economic Circle

本文选取1998—2018年成渝双城经济圈内156个区县的人均GDP为研究指标,采用加权变异系数、泰尔指数、空间相关性、经济重心等传统区域经济差异统计与空间计量分析相结合的方法揭示其时空演变特征。结果表明:①该区域经济总体差异呈不断缩小的趋势,区域内差异是总体差异的主要来源;②县域经济在空间上呈现出显著的集聚状态,在局部空间格局上,体现了边缘化特征和俱乐部趋同现象;③在双核城市相向发展的趋势下,经济重心开始向东南方向迁移,并最终达到相对稳定。

This paper uses the per capita GDP of 156 districts and counties in Chengdu-Chongqing Economic Circle as the research indicator,using the weighted coefficient of variation,Theil index,spatial correlation,economic center of gravity and other traditional regional economic difference statistics and spatial econometric analysis.The combined method reveals its temporal and spatial evolution characteristics.The results show that:①The overall economic differences in the region are shrinking,and intra-regional differences are the main source of the overall differences.②The county economy shows a significant spatial agglomeration;in the local spatial pattern,it reflects Marginalization and Club convergence.③Under the trend of mutual development of dual-core cities,the economic center of gravity began to move to the southeast and eventually reached relative stability.