收入不平等与中国国民福利增长:模型、方法与数据——基于效用主义的一个研究

发布时间：2018-04-14 15:15

本文选题：收入不平等 + 基尼系数　；参考：《数理统计与管理》2015年02期

【摘要】：自改革开放以来,中国的收入不平等日益加剧;然而收入不平等造成的国民福利损失以及收入不平等加剧对国民福利增长的影响却一直未能得到很好的评估,由此导致的注重效率忽视公平的发展模式并不能带来国民福利增长的最大化。本文以效用主义为理论基础,通过构建一个包含基尼系数的国民福利函数,严格证明收入不平等的负福利效应,并进一步给出计算收入不平等的福利损失公式以及收入不平等变化对国民福利增长影响的公式。数据计算表明,1996-2010年我国居民收入不平等的平均福利损失率为8.08%,收入不平等的绝对福利损失增长了1.44倍;而基尼系数增大对国民福利增长的相对影响是(-)8.66%。因此,在发展经济的同时必须致力于缩小收入不平等,兼顾公平与效率,方可实现国民福利增长的最大化。
[Abstract]:Since the reform and opening up, income inequality in China has been increasing; however, the loss of national welfare caused by income inequality and the impact of rising income inequality on the growth of national welfare have not been well assessed.The resulting development model, which pays attention to efficiency and neglects equity, cannot maximize the growth of national welfare.Based on the theory of utilitarianism, this paper strictly proves the negative welfare effect of income inequality by constructing a national welfare function with Gini coefficient.Furthermore, the formulas for calculating the welfare loss of income inequality and the influence of income inequality on the increase of national welfare are given.The data show that the average welfare loss rate of income inequality is 8.08, and the absolute welfare loss of income inequality increases by 1.44 times, while the relative influence of Gini coefficient on the increase of national welfare is 8.66.Therefore, while developing economy, we must focus on reducing income inequality and giving consideration to equity and efficiency in order to maximize the growth of national welfare.
【作者单位】：汕头大学商学院;
【基金】：广东省哲学社会科学规划项目(编号:GD13YLJ01) 汕头大学科研启动经费项目(编号:STF13011) 汕头大学文科科研基金项目(编号:SR13004)
【分类号】：F224;F124.7

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