我国副省级城市经济规模化发展的极化效应分析

Analysis on Polarization Effect of Economic Scale Development in China′s Sub-provincial Cities

在我国经济结构战略性调整、城市经济发展非均衡化的背景下,利用1995—2011年我国15个副省级城市的11项经济指标的数据,测算了其经济规模化发展指数,并运用泰尔指标和ER极化指数测量了城市经济规模化发展的极化效应。结果表明:15个副省级城市整体经济规模化发展的极化水平具有波浪式变化特征,2010年极化效应开始加剧;发达区8个副省级城市的经济规模化的极化水平呈倒W型减弱趋势。指出:二、三产业协同拉动城市经济的发展方式有助于弱化城市经济规模化发展的极化效应。

In the background of strategic restructuring of national economy and the imbalance of city＇s economy development, this paper con- structs the city＇s economic scale developing index through using eleven indexes,and uses the data of China＇s fifteen sub-provincial cities during 1995-2011 to to calculate their economic scale developing indexes. Then it adopts TW indicator and ER polarization index to measure their eco- nomic scale disequilibrium tendency. The result results show as follows：the overall polarization tendency of fifteen sub-provincial cities presents the characteristics of wave mode,and the level strengthens in 2010;the overall polarization tendency of eight sub-provincial cities in developed area presents the characteristics of reverse ＇W＂ type, and weakens in gap. Finally, it puts forward the collaborative pull of manufacturing and service industries could weaken the disequilibrium tendency of city＇s economic scale development.