近几年来,收入分配逐渐成为社会各界所关心的焦点问题之一,研究收入分配差距的变动趋势与来源也成为学术界研究的热点。在各种收入差距中,城乡收入差别尤其引人注目。伴随着中国经济的高速发展,城乡收入差别不仅没有消失,反而在不断扩大。《中国统计年鉴2010》的数据表明,从1990年到2009年间,城乡居民人均纯收入的比例从2.2:1上升到3.3:1。不断上升的城乡收入差别,导致了劳动人口大量从农村向城 In recent years, income distribution has gradually become one of the most important issues of concern to all sectors of society. It is also a hot area for academic research to study trends and sources of changes in the income distribution gap. Among various income disparities, the income disparity between urban and rural areas is particularly noticeable. With the rapid development of China’s economy, the income gap between urban and rural areas has not only disappeared but has been expanding. Data from China Statistical Yearbook 2010 show that from 1990 to 2009, the ratio of per capita net income of urban and rural residents rose from 2.2: 1 to 3.3: 1. The rising income gap between urban and rural areas has led to a large labor force moving from rural areas to cities