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Income Inequality Decomposition by Income Source in Japan

Author

Listed:
  • Masato Shikata

    (School of Policy Studies, Kwansei Gakuin University)

  • Soichiro Tanaka

    (Department of Economics, Kanto Gakuin University)

Abstract

Income Inequality Decomposition by Income Source in Japan In this study, we decompose income inequality in Japan by income source to analyze the changes in income distribution among working age people. The data used are from the National Survey of Income and Expenditure (Ministry of Internal Affairs and Communications Statistics Bureau). Our results show that changes in the earnings of both household heads and their spouses greatly increases income inequality, while earnings of other household members decrease income inequality. Changes in income tax burdens increase income inequality, while changes in social insurance premiums decrease income inequality. The effects of earnings of household heads and their spouses on income inequality are largely offset by changes in other income sources. As a result, increases in inequality in Japan remain small.

Suggested Citation

  • Masato Shikata & Soichiro Tanaka, 2017. "Income Inequality Decomposition by Income Source in Japan," Keio-IES Discussion Paper Series 2017-029, Institute for Economics Studies, Keio University.
    • Handle: RePEc:keo:dpaper:2017-029
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    Keywords

    Income inequality;

    JEL classification:

    • H24 - Public Economics - - Taxation, Subsidies, and Revenue - - - Personal Income and Other Nonbusiness Taxes and Subsidies
    • I38 - Health, Education, and Welfare - - Welfare, Well-Being, and Poverty - - - Government Programs; Provision and Effects of Welfare Programs

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