Evolution of the Economic Space in the Yangtze River Delta:Density, Distance and Division
基于密度、距离和分工视角，利用主成分分析研究了后WTO时代长三角经济空间演变特征，发现经济密度增加但分化加剧，南部经济距离优势明显，北部面临分工问题。
The evolution of the economic space of the metropolitan areas contributes to regional and national competitive power.On the perspective of density,distance and division,this paper discusses the characteristics of the economic space evolution in the Yangtze River Delta(YRD) during the post-WTO era,based on Principle component analysis.The results show that the economic density has increased and diverged from 2000 to 2009 in the YRD.The economic distance advantage of the south region of the YRD,which is better than the north YRD,will benefit on the economic space optimization in the YRD.The economic space division in the YRD has aggravated from 2000 to 2009,especially in Suzhou-Wuxi-Changzhou areas.Though the economic space division in the south YRD is far behind that in the north YRD,the growth rate of economic integration of the south YRD cities,such as Ningbo,Zhoushan and Taizhou,is much higher.In sum,economic space division is the key problem for the north YRD cities.For the south YRD region with the greatest potential for economic space optimization,it’s offered the suggestion to increase economic density and enhance the advantage of integration.