二元经济转型与劳动收入份额:理论与实证分析

Dual-economy Transition and Labor Share in China:Theoretical and Empirical Analysis

文章提出二元转型程度对劳动收入份额的影响分为工资效应和劳动生产率效应，并结合我国劳动力市场的分割特点，论述了劳动收入份额随二元转型程度变动的“u”型规律。文章对1993～2010年中国省级面板数据的总体及分组计量分析表明，二元转型系数与劳动收入份额的“u”型关系确实存在，同时低水平组的劳动生产率负效应更大，随着二元转型程度的发展，工资效应的正向作用开始显现，而劳动生产率的负效应则逐渐减弱。

We demonstrate that the overall effect of dual - economy degree on the labor share can be disaggregat-ed into the wage effect and the labor - productivity effect. In light of the characteristics of segmented markets,we also illustrate that labor share follows a U - shaped curve along the dual - economy degree. Sufficient empir-ical analysis of the 1993 -2010 provincial panel data in China proves that the U -shape law does exist. Mean-while, the negative impact of labor - productivity effect is more significant in the lower - degree group, Thilethe positive impact of the wage effect kicks in and negative labor - productivity effect declines as the dual - e-conomy degree increases.