A note on the relationship between top income shares and the Gini coefficient

被引：94

作者：

Alvaredo, Facundo ^{[1
,2
]}

机构：

[1] Univ Oxford, Dept Econ, Manor Rd Bldg,Manor Rd, Oxford OX1 3UQ, England

[2] Univ Torcuato Tella, CONICET, Buenos Aires, DF, Argentina

来源：

ECONOMICS LETTERS | 2011年 / 110卷 / 03期

关键词：

Gini coefficient; Top income shares; Pareto distribution;

D O I：

10.1016/j.econlet.2010.10.008

中图分类号：

F [经济];

学科分类号：

02 ;

摘要：

When a very top group of the income distribution, infinitesimal in numbers, owns a finite share S of total income, the Gini coefficient G can be approximated by G*(1 - S) + S, where G* is the Gini coefficient for the rest of the population. We provide a simple formal proof for this expression, give a general formula of the relationship when the top group is not infinitesimal, and offer two applications as illustrations. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：274 / 277

页数：4

共 12 条

[1]

Aitchison J., 1954, Metroeconomica, International review of economics, Volume, V6, P88

[2]

[Anonymous], 2010, TOP INCOMES 20 CENTU

[3]

Atkinson AB, 2000, HANDB ECON, V16, P1

[4]

ATKINSON AB, 2009, 15408 NBER WP