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STATISTICAL ANALYSIS OF WORLD INCOME DISTRIBUTION

Research Project

Project/Area Number 12630032
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Economic statistics
Research InstitutionOKAYAMA UNIVERSITY

Principal Investigator

YOSHIDA Tateo  Okayama University, Faculty of Economics, Professor, 経済学部, 教授 (00150889)

Project Period (FY) 2000 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 2001: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 2000: ¥1,100,000 (Direct Cost: ¥1,100,000)
KeywordsWorld Income Distribution / Global Income Distribution / Inequality / Lorenz Curve / Gini Coefficient / Entropy Measure / Purchasing Power Parity / 所得分布 / 不平等度 / 集中度曲線 / RAI指数 / 中間主義的不平等
Research Abstract

This study examines the levels and trends in the inequality of worldwide income distribution during the second half of the 20th century. Using aggregate GDP data from the latest version of the Penn World Table (PWT6.1) provided by A. Heston, R. Summers and B. Aten, and income distribution data from the World Income Inequality Database Ver 1.0 (WIID Ver1.0) compiled by UNDP and UNU/WIDER, we construct the world distribution of real income for 115 countries between 1962 and 2000, and calculate the Gini coefficient and the gereralized entropy class of inequality implied by the world distribution. Our new evidence shows that world income inequality increased from 1962 to 1980 and decreased during the 1980's and 1990's. However, if China is excluded from the sample, all of the inequality measures document the increasing inequality in the world distribution of income over the past 30 years ; this suggests that the rapid growth of per capita income in China was the main factor in the recent trend towards decreasing world income inequality.

Report

(3 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • Research Products

    (2 results)

All Other

All Publications (2 results)

  • [Publications] Tateo Yoshida: "Social Welfare Rankings of Income Distributions : A New Parametric Concept of Intermediate Inequality"Discussion Paper Series No. 1-46, Economic Association of Okayama University. No.I-46. 1-15 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Tateo Yoshida: "Social Welfare Rankings of Income Distributions : A New Parametric Concept of International Inequality."Discussion Paper Series, Economic Association of Okayama University. No. I-46. 1-15 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary

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Published: 2000-04-01   Modified: 2016-04-21  

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