Pareto law of the expenditure of a person in convenience stores

被引：23

作者：

Mizuno, Takayuki ^{[1
]}

Toriyama, Masahiro ^{[2
]}

Terano, Takao ^{[2
]}

Takayasu, Misako ^{[2
]}

机构：

[1] Hitotsubashi Univ, Inst Econ Res, Kunitachi, Tokyo 1868603, Japan

[2] Tokyo Inst Technol, Interdisciplinary Grad Sch Sci & Engn, Dept Computat Intelligence & Syst Sci, Midori Ku, Yokohama, Kanagawa 2268502, Japan

来源：

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2008年 / 387卷 / 15期

基金：

日本学术振兴会;

关键词：

point of sale; power law; Gini coefficient; Pareto principle;

D O I：

10.1016/j.physa.2008.01.059

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the statistical laws of the expenditure of a person in convenience stores by analyzing around 100 million receipts. The density function of expenditure exhibits a fat tail that follows a power law. Using the Lorenz curve, the Gini coefficient is estimated to be 0.70; this implies that loyal customers contribute significantly to a store's sales. We observe the Pareto principle where both the top 25% and 2% of the customers account for 80% and 25% of the store's sales, respectively. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：3931 / 3935

页数：5

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