本文利用1991～2009年的中国营养与健康调查数据，使用基于RIF的分位数回归分解方法分析了我国城镇居民的性别收入差距及其演变。基于RIF的分位数回归及分解表明：城镇居民低收入分位数上的性别收入差距不断扩大，高收入分位数上的性别收入差距有所降低。不同分位数上，特征效应对性别收入差距解释的比重不断下降；由系数效应带来的性别歧视对性别收入差距解释比重持续上升，系数效应成为造成低收入分位数性别收入差距扩大的重要因素。此外，教育的特征差异有利于性别收入差距的降低，但教育、职业及地区的系数差异对性别收入差距的扩大有重要的贡献。%Based on the CHNS data during the period of 1991 and 2009 , this paper analysis the gender wage differential by using the decomposing method which is based on the RIF regression .The results show that the gender wage differential is getting large in the lower quantile , but the gap is declining in the highest quantile since the reform and opening up; the part of gap which can be explained by the “quality effect” is gradually declining , while the part of differential which can be explained by the “coefficient effect” is rising; in addition to that the difference in the education characteristic between the male-female group is conducive to the reduction of the gender wage gap , but the coefficient differences in education , occupation and district make great contribution to the rising gender wage differential .
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