城镇中等收入群体测度与分解——基于非参数估计的收入分布方法

Measurement and Decomposition of Urban Middle Income Groups in China——Based on the Nonparametric Estimation of Income Distribution Method

在对中等收入群体进行合理界定的基础上,基于非参数核密度的收入分布方法,提出基于样本数据的收入群体划分和测度方法。运用中国综合社会调查数据(CGSS)对城镇中等收入群体状况进行测度,并依据收入分布将影响城镇中等收入群体比重变动的因素分解为增长效应、分配效应和标准线变动三个方面。

Based on the reasonable definition of middle income groups and nonparametric kernel density of income distribution method,the classification and measurement method of middle income group are made by using sample data.The measurement of urban middle income groups in China is made by using data from Chinese General Social Survey（CGSS）.Besides,based on the income distribution,the factors influencing the proportion change of urban middle income groups are decomposed into three aspects including growth effect,distribution effect and the change of standard line.