本文利用国家统计局2012年城镇住户调查数据,首次在引入广义熵指数并考虑居民隐性收入的基础上研究了2011年税制调整对我国个人所得税再分配效应的影响。研究发现此次税制调整对个税再分配效应的总体影响不明确,但从结构上看个税"调节高收入"的效果显著改进,且收入处于中等偏上水平的家庭受益最大。文章最后建议从结构层面细化个人所得税再分配功能的定位,从而更好地发挥个人所得税在我国再分配政策体系中的作用。
Using the 2012 household survey data, this paper studies the impact of 2011 Tax reform on the redistribution effects of China' s Individual Income Tax system based on the generalized entropy index and the hidden income. We find that the effect of the tax adjustments on the income redistribution is not clear, while structurally, the reform made the Individual Income Tax (IIT) system more effectively reduce the inequality within the top-income group, and let the uppermiddle income families benefit the most. We finally suggest the redistribution function of China' s lit system should be refined based on structural targets so that it can play the proper role as an important redistribution policy measure.