统计研究 ›› 2009, Vol. 26 ›› Issue (8): 77-80.

• 论文 • 上一篇    下一篇

收入不平等与两极分化的估算与控制——以上海城镇为例

张奎 王祖祥   

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-08-15 发布日期:2009-08-15

Measurement and Control of Income Inequality and Polarization:A Case of Shanghai Urban Residents

  • Received:1900-01-01 Revised:1900-01-01 Online:2009-08-15 Published:2009-08-15

摘要: 本文介绍了利用历年《上海市统计年鉴》发布的城镇居民收入分组数据测算基尼系数和极化指数的一种方法,并对1995-2007年上海市城镇收入不平等和两极分化进行了估算。结果表明,上海市城镇的基尼系数和极化指数在过去13年间上升较快,收入不平等和两极分化均明显扩大。从最近三年上海城镇收入不平等和两极分化略有下降的情况来看,不断健全的社会保障制度将有助于控制收入不平等和两极分化。

关键词: 洛伦兹曲线, 收入不平等, 两极分化, 基尼系数, 极化指数

Abstract: This paper discusses the method of estimating the Gini coefficient and polarization index using grouped income data of urban residents in Shanghai, then estimates the income inequality and polarization. The results show that Gini coefficient and polarization index of Shanghai urban residents have been increasing quickly over the past thirteen years. From the recent three years, there has been a slight decrease of income inequality and polarization of Shanghai urban, gradually improved social security system will contribute to control income inequality and polarization. 

 
 

Key words: Lorenz Curve, Income Inequality, Bi-polarization, Gini Coefficient, Polarization Index