西江流域城市经济分异的经济学解释--基于份额-偏差分析模型

摘要

西江流域按区段选择33个城市，并划分为上、中、下游城市群，通过份额—偏差分析模型的研究发现，西江流域城市经济呈现“杠铃式”分异特征，流域城市经济分异表面上通过经济规模体现出来，但实质来自经济增长的相对竞争优势；并进一步发现这个相对竞争优势不是来自投资规模和产业结构，而是主要来自于区位优势、城市化及收入分配的相对竞争优势。%　　There are 33 cities selected with the river section in the Xijiang river-basin, which are divided into upper, middle and lower reaches city groups. Through the shift-share analysis model, the study finds that the City Economic Differentiation presents a barbell differentiation among the River-basin city economy,reflected through economy scale on the surface, but from economic growth competitive differentiation process in essence. And further research discovers that the competitiveness coming from the investment scale and the industrial structure is not obvious, and yet it mainly comes from the location advantage, urbanization and the distribution of income.