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Insurance, Redistribution, and the Inequality of Lifetime Income

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  • Peter Haan
  • Daniel Kemptner
  • Victoria Prowse
  • Maximilian Schaller

Abstract

Individuals vary considerably in how much they earn during their lifetimes. This study examines the role of the tax-and-transfer system in mitigating such inequalities, which could otherwise lead to disparities in living standards. Utilizing a life-cycle model, we determine that taxes and transfers offset 45% of lifetime earnings inequality attributed to differences in productive abilities and education. Additionally, the system insures against 48% of lifetime earnings risk. Implementing a lifetime tax reform linking annual taxes to previous employment could improve the system’s insurance capabilities, albeit at the cost of a lower employment rate.

Suggested Citation

  • Peter Haan & Daniel Kemptner & Victoria Prowse & Maximilian Schaller, 2023. "Insurance, Redistribution, and the Inequality of Lifetime Income," Berlin School of Economics Discussion Papers 0028, Berlin School of Economics.
    • Handle: RePEc:bdp:dpaper:0028
    DOI: 10.48462/opus4-5112
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    3. Bartels, Charlotte & Neumann, Dirk, 2021. "Redistribution and Insurance in Welfare States around the World," EconStor Open Access Articles and Book Chapters, ZBW - Leibniz Information Centre for Economics, vol. 123(4), pages 1116-1158.
    4. Fischer, Benjamin & Hügle, Dominik, 2020. "The private and fiscal returns to higher education: A simulation approach for a young German cohort," Discussion Papers 2020/21, Free University Berlin, School of Business & Economics.
    5. Korfhage, Thorben, 2019. "Long-run consequences of informal elderly care and implications of public long-term care insurance," Ruhr Economic Papers 813, RWI - Leibniz-Institut für Wirtschaftsforschung, Ruhr-University Bochum, TU Dortmund University, University of Duisburg-Essen.
    6. Brewer, Mike & Joyce, Robert & Waters, Tom & Woods, Joseph, 2020. "A method for decomposing the impact of reforms on the long-run income distribution, with an application to universal credit," Economics Letters, Elsevier, vol. 192(C).
    7. Richiardi, Matteo & He, Zhechun, 2020. "Measuring economic insecurity: a simulation approach," Centre for Microsimulation and Policy Analysis Working Paper Series CEMPA2/20, Centre for Microsimulation and Policy Analysis at the Institute for Social and Economic Research.
    8. Backhaus, Teresa, 2025. "Training in late careers — A structural approach," Labour Economics, Elsevier, vol. 93(C).

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    JEL classification:

    • D63 - Microeconomics - - Welfare Economics - - - Equity, Justice, Inequality, and Other Normative Criteria and Measurement
    • H23 - Public Economics - - Taxation, Subsidies, and Revenue - - - Externalities; Redistributive Effects; Environmental Taxes and Subsidies
    • I24 - Health, Education, and Welfare - - Education - - - Education and Inequality
    • I38 - Health, Education, and Welfare - - Welfare, Well-Being, and Poverty - - - Government Programs; Provision and Effects of Welfare Programs
    • J22 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Time Allocation and Labor Supply
    • J31 - Labor and Demographic Economics - - Wages, Compensation, and Labor Costs - - - Wage Level and Structure; Wage Differentials

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