关键词: 收入不平等 , 消费不平等 , 收入分配

Abstract: In this study, we examine the composition of income and consumption inequality and their relations in Chinas urban population during the period 2002—2009 by using the Urban Household Survey data We find that urban residents income inequality is mainly caused by wage income; the marginal contribution of wage income and property income to total income inequality is positive, and it is negative for transfer income and operating income; pension and social relief are the most important factors for reducing the total income inequality; food expenses, transportation and communication expenses are the main parts of urban residents consumption inequality, and for the former, the marginal contribution to the total consumption inequality is negative, while for the latter it is positive; urban residents consumption inequality is caused mainly by income inequality.

Key words: income inequality , consumption inequality , income distribution