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The Impact of Income Inequality on Mortality: A Replication Study of Leigh and Jencks (Journal of Health Economics, 2007)

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  • Wu Weilun

    (Department of Economics and Finance, College of Business and Law, University of Canterbury, Canterbury, New Zealand)

Abstract

This study replicates “Leigh A., & Jencks C. (2007). Inequality and mortality: Long-run evidence from a panel of countries. Journal of Health Economics, 26(1), 1–24” study of the relationship between income inequality and mortality. L&J find no evidence that income inequality is related to country-level mortality. Their analysis is based on two-way fixed effects specifications applied to a panel of 12 countries over periods ending in 2003. After reconstructing L&J’s data from original sources, I am able to closely reproduce their findings. When I use superior inequality data and extend L&J’s data to an additional 11 countries and 15 years, I confirm their results. When I use multiple imputation to increase the sample to full size, I again do not find a significant relationship between income inequality and mortality. As a result, I conclude that my replication exercise confirms L&J’s results. The new analysis provides consistent evidence for the view that income inequality is not significantly related to mortality.

Suggested Citation

  • Wu Weilun, 2022. "The Impact of Income Inequality on Mortality: A Replication Study of Leigh and Jencks (Journal of Health Economics, 2007)," Economics - The Open-Access, Open-Assessment Journal, De Gruyter, vol. 16(1), pages 229-242, January.
    • Handle: RePEc:bpj:econoa:v:16:y:2022:i:1:p:229-242:n:13
    DOI: 10.1515/econ-2022-0030
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    References listed on IDEAS

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    More about this item

    Keywords

    income inequality; health; mortality; multiple imputation;
    All these keywords.

    JEL classification:

    • I12 - Health, Education, and Welfare - - Health - - - Health Behavior
    • N30 - Economic History - - Labor and Consumers, Demography, Education, Health, Welfare, Income, Wealth, Religion, and Philanthropy - - - General, International, or Comparative

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