双重滞后型区域城乡金融非均衡发展对城乡收入差距影响的实证分析

The Impact of Unbalanced Development of Finance in the Double Hysteresis Regions upon the Urban-Rural Income Gap

金融发展逐渐成为影响城乡收入差距的一个重要原因。然而,中国城乡失衡的巨大差异又决定了各自区域二者关系的不同。选取双重滞后型城乡关系的典型区域——甘肃省为研究对象,对其城乡居民收入差距与城乡金融非均衡发展的现状进行描述与分析,运用1978—2009年的相关数据,通过协整检验、长短期的Granger因果检验以及方差分解分析了二者之间的关系。实证研究表明,以甘肃省为代表的双重滞后型地区,城乡金融非均衡发展与城乡收入差距存在长期协整关系,且二者呈现出显著的正相关。城乡金融发展规模的非均衡对城乡居民收入差距的拉大作用更为明显,而城乡金融发展效率的非均衡对城乡收入差距的拉大作用较弱。

Financial development has gradually become one of the important factors leading to the urban-rural income gap;and the huge difference between the urban-rural areas in China has determined the variety of their relationships in different regions.In this study,Gansu province,a typical double hysteresis region,is selected as the research object and corresponding data collected in 1978—2009 have been studies via cointegration test,long- and short-term granger causality test and variance decompositions.The result shows that there exists a long-term cointegration relationship between the unbalanced financial development in the urban and rural areas and the urban-rural income gap;both show a significant positive correlation.The scale of the unbalanced financial development evidently widens the urban-rural income gap while the imbalance in the efficiency of urban-rural financial development does not obviously affect the urban-rural income gap.