统计研究 ›› 2009, Vol. 26 ›› Issue (7): 98-102.

• 论文 • 上一篇    下一篇

加法可分性贫困指数的比较研究

陆康强   

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-07-15 发布日期:2009-07-15

A Comparative Study of the Additively Decomposable Poverty Indices

Lu Kangqiang   

  • Received:1900-01-01 Revised:1900-01-01 Online:2009-07-15 Published:2009-07-15

摘要: 本文以Watts指数、FGT指数、CHU指数和笔者提出的R指数为对象,考察了这四个加法可分性贫困指数的形式和特性,并采用“中国综合社会调查”(CGSS)的数据,比较了四个指数的测量表现。结果显示,相对于其他三个同类指数,R指数的公式法和模型法的计算结果近似度高,且受数据分组形式的影响也小,是一种可取的具有分组稳健性优势的贫困量度。

关键词: 贫困测量, 贫困指数, 加法可分性, CGSS, 稳健性

Abstract: Focusing on the Watts index, the FGT index, the CHU index and the R index, this article examines the constructions and characteristics of the four additively decomposable poverty measures. Furthermore, by comparing the measuring performance of these indices with the CGSS data, the article shows that in view of its highest degree of approximation of the calculation results separately from the formula method and the model method, as well as of its least variation among the different types of grouped data, R index is a desirable poverty measure more robust than the other three ones.

 

Key words: Poverty Measurement, Poverty Index, Addictive Decomposability, CGSS, Robustness