长江中游城市群省级行政边界效应的测度

Measurement of Provincial Border Effects of Urban Agglomeration in the Middle Reaches of the Yangtze River

文章采用改进的β回归方程测度长江中游城市群内部的省级行政边界效应及其演变,结果表明：2000—2014年,长江中游城市群经济发展存在结构性变动,行政边界对区域一体化阻碍较为明显。从动态视角看,城市群总体由经济差异化向经济一体化趋势转变;三省省际边界效应均由2000—2008年的屏蔽效应向2008—2014年的中介效应转变;可达性的改善促进了区域一体化的倾向,并对边界效应的影响较为显著。

This paper adopts the improved β regression equation to measure the provincial border effects and their evolutions of the urban agglomeration in the middle reaches of the Yangtze River. The results show that from 2000 to 2014, the structural alternation is discovered within urban agglomeration in the middle reaches of the Yangtze River, and the borders of administrative areas hinder the process of regional integration. From a dynamic perspective, the urban agglomeration shifts from economic differentiation to economic integration; the shielding effects of three provinces＇ provincial boundary from 2000 to 2008 have turned into mediating effects from 2008 to 2014; the improvement of traffic accessibility promotes the regional integration, and impacts significantly the border effects.