Evidence for the exponential distribution of income in the USA

被引：224

作者：

Dragulescu, A ^{[1
]}

Yakovenko, VM ^{[1
]}

机构：

[1] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

来源：

EUROPEAN PHYSICAL JOURNAL B | 2001年 / 20卷 / 04期

关键词：

02.50.-r Probability theory; stochastic processes; and statistics; 87.23.Ge Dynamics of social systems; 89.90.+n Other topics in areas of applied and interdisciplinary physics;

D O I：

10.1007/PL00011112

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Using tax and census data, we demonstrate that the distribution of individual income in the USA is exponential. Our calculated Lorenz curve without fitting parameters and Gini coefficient 1/2 agree well with the data. From the individual income distribution. we derive the distribution function uf income for families with two earners and show that it also agrees well with the data. The family data for the period 1947-1994 fit the Lorenz curve and Gini coefficient 3/8 = 0.375 calculated for two-earners families.

引用

页码：585 / 589

页数：5

共 17 条

[1]

[Anonymous], 1955, ECOLE NATL SUPERIEUR

[2] Statistical mechanics of money [J].