Abstract: Based on the data of China Migrants Dynamic Survey (CMDS) in 2017, this paper empirically tests the two action mechanisms of increasing and restraining the income of floating population by using the bilateral stochastic frontier model. The study finds that for the whole sample, the final wage income of floating population is higher than the reserved wage; Subsample results show that the premium effect in the eastern and central regions is higher than the inhibiting effect of registered residence discrimination, and the premium effect in the eastern part is significantly higher than that in the central and western regions. The wage premium effect in the western region is lower than the inhibiting effect of registered residence discrimination. There is a large wage gap among floating population. The lowincome group is more discriminatory by registered residence. Their lower wage premium leads to a lower wage earning than the retained income. In contrast, the highincome group benefits more from the wage premium effect.

Keywords: Floating Population, Bilateral Stochastic Frontier Model, Flowing Effect, Wage Premium, Registered Residence Discrimination

摘要： 从微观来看，流动决策和流动行为作为个体提高人力资本效率的理性选择，能够有效提高个体工资收入水平。但是，流动个体也面临来自流入地的各种歧视，这是抑制其工资收入提高的主要障碍。基于2017年中国流动人口动态监测调查数据，采用双边随机前沿模型对提升和抑制流动人口工资收入的两种作用机制进行实证检验。研究发现：对全样本而言，流动人口最终实际工资高于保留工资；分样本分析结果显示，东部和中部地区流动溢价效应高于户籍歧视抑制效应，东部地区的流动溢价效应显著高于中部和西部地区，西部地区的流动溢价效应低于户籍歧视抑制效应；流动人口间存在较大工资差异，低收入人群受到更强的户籍歧视，工资溢价更低，最终实际工资低于保留工资，高收入人群则从流动溢价效应中获益更高。

关键词: 流动人口, 双边随机前沿模型, 流动效应, 工资溢价, 户籍歧视效应