统计研究 ›› 2010, Vol. 27 ›› Issue (9): 48-51.

• 论文 • 上一篇    下一篇

收入基尼系数的统计推断

胡志军 龚志民   

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-09-15 发布日期:2010-09-15

Inference for Income Gini Index

Hu Zhijun & Gong Zhimin   

  • Received:1900-01-01 Revised:1900-01-01 Online:2010-09-15 Published:2010-09-15

摘要: 基尼系数估计量的统计推断是基尼系数研究的一个重点。本文我们使用Davidson(2009)提出的近似大样本渐进分布方法,对收入基尼系数估计量进行统计推断,包括计算估计量的标准差、构造置信区间和进行假设检验。通过模拟试验,我们验证了在小样本情形下,依据该方法所做的统计推断具有较高的可靠性。在此基础上,我们对我国城镇居民的真实收入基尼系数进行了统计推断。

关键词: 基尼系数, 蒙特卡洛试验, 统计推断

Abstract: Inference for Gini index is an important branch of Gini index research. In our paper We use the large sample method proposed by Davison to make inferences for Gini index, including calculating the estimator’s standard error、confidence interval and the hypothesis tests. By simulation, we verify that the inferences based on this method are reliable in small sample situation. Therefore, we make inferences for Gini index of Chinese urban residents’ income.

Key words: Gini, Index, Monte, Carlo, Simulation, Statistical, Inference