近年来,我国居民收入的不平等程度越来越严重,低收入群体和高收入群体的收入差距不断扩大。对此,国家发展和改革委员会产业发展研究所所长马晓河援引美国著名经济学家西蒙·库兹涅茨的观点指出,当人均收入增长时,收入不平等在最初会加重;在中等收入水平时,不平等达到了顶峰,最为严重;当收入水平具有了工业化国家的特点时,不平等才开始下降。以此衡量,目前我国人均国内生产总值在中下等收入水平,正处于从加重阶段向最为严重阶段演变时期。在这个时期里,为了防止收入分配的过度分化,并使 In recent years, the income inequality in our country has become more and more serious, and the income gap between low-income groups and high-income groups has been constantly expanding. In response, Ma Xiaohe, director of the Industrial Development Research Institute of the National Development and Reform Commission, quoted Simon Kuznets, a famous American economist, as saying that income inequality will initially increase when per capita income rises; at the middle income level Inequalities peaked and were the most serious; inequality began to decline when income levels had the characteristics of an industrialized country. In this measure, at present, China’s per capita gross domestic product in the middle and lower income levels, is in the aggravating phase to the most serious stage of evolution. In this period, in order to prevent excessive division of income distribution and make