二元结构、经济转轨与城乡收入差距分化

Dual Structure,Economic Transition and Fragmentation of Urban-Rural Income Disparity

文章认为,城乡收入差距内生于"经济人"追求自身效用最大化的过程当中,直接套用库兹涅茨-威廉姆森假说对我国的城乡收入差距可能并不一定具有太大的解释力,而将我国的城乡二元结构和经济转轨这一双重制度变迁背景引入城乡差距模型中才能清楚地解释中国的城乡差距。研究发现,人口自由流动条件下,随着经济的发展,城乡收入差距会逐步缩小;人口不自由流动条件下,城乡差距会发生多层分化,但即使如此,中国的城乡差距仍不太符合所谓的库兹涅茨-威廉姆森假说。

This paper is of the view that urban-rural income disparity is endogenous in economic man＇s pursuit of his own utility maximization, and that the Kuznetz-Williamson Hypothesis is inapplicable to China＇s situation. Our model with consideration of China＇s dual institutional change-dual structure and economic transition, shows that urban-rural income disparity will become smaller with the economic development under free migration, while under non-free migration there will be a fragmented urban-rural income disparity, even under this situation, Kuznetz-Williamson Hypothesis is also inapplicable.