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Optimal family taxation and income inequality

Author

Listed:
  • Patricia Apps

    (The University of Sydney
    IZA)

  • Ray Rees

    (The University of Sydney
    LMU Munich
    CESifo)

Abstract

This paper presents the properties of optimal piecewise linear income tax systems for families, based on joint and individual incomes. It models the interaction between the wage rates of mothers as “second earners” and variation in child care prices and productivities as determinants of heterogeneity in second earner labour supply. We find that individual taxation welfare dominates joint taxation on grounds of both efficiency and equity. Heterogeneous labour supplies, the positive relationship between household wages and child care quality, and the sharp rise in wage rates in the top percentiles of the primary wage distribution account for this result. In addition to reducing the intra-household net-of-tax wage gap, individual taxation removes the opportunity for tax avoidance that income-splitting makes available to high-wage primary earners, leading to a much fairer distribution of the tax burden.

Suggested Citation

  • Patricia Apps & Ray Rees, 2018. "Optimal family taxation and income inequality," International Tax and Public Finance, Springer;International Institute of Public Finance, vol. 25(5), pages 1093-1128, October.
    • Handle: RePEc:kap:itaxpf:v:25:y:2018:i:5:d:10.1007_s10797-018-9492-5
    DOI: 10.1007/s10797-018-9492-5
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    Cited by:

    1. Ray Rees & Thor O. Thoresen & Trine E. Vattø, 2023. "Alternatives to Paying Child Benefit to the Rich: Means‐Testing or Higher Tax?," Australian Economic Review, The University of Melbourne, Melbourne Institute of Applied Economic and Social Research, vol. 56(3), pages 328-354, September.
    2. Patricia Apps & Ray Rees, 2022. "Inequality measurement and tax/transfer policy," International Tax and Public Finance, Springer;International Institute of Public Finance, vol. 29(4), pages 953-984, August.
    3. Wang, Ruiting & Xu, Gang, 2020. "Can child allowances improve fertility in a gender discrimination economy?," Economic Modelling, Elsevier, vol. 93(C), pages 162-174.
    4. Nazila Alinaghi & John Creedy & Norman Gemmell, 2020. "The Redistributive Effects of a Minimum Wage Increase in New Zealand: A Microsimulation Analysis," Australian Economic Review, The University of Melbourne, Melbourne Institute of Applied Economic and Social Research, vol. 53(4), pages 517-538, December.
    5. Volker Meier & Matthew D. Rablen, 2019. "Political economy of redistribution between traditional and modern families," CESifo Working Paper Series 7658, CESifo.
    6. Paul Dalziel, 2019. "Wellbeing economics in public policy: A distinctive Australasian contribution?," The Economic and Labour Relations Review, , vol. 30(4), pages 478-497, December.
    7. Takuya Obara & Yoshitomo Ogawa, 2020. "Optimal Taxation in an Endogenous Fertility Model with Non-Cooperative Couples," Discussion Paper Series 211, School of Economics, Kwansei Gakuin University, revised Jan 2021.
    8. Gerhard Glomm & Volker Meier, 2020. "Efficient child care subsidies: any need for cash for care?," Review of Economics of the Household, Springer, vol. 18(3), pages 773-793, September.
    9. Komura, Mizuki & Ogawa, Hikaru & Ogawa, Yoshitomo, 2019. "Optimal income taxation when couples have endogenous bargaining power," Economic Modelling, Elsevier, vol. 83(C), pages 384-393.

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    More about this item

    Keywords

    Optimal taxation; Piecewise linear; Labour supply; Child care; Inequality;
    All these keywords.

    JEL classification:

    • D31 - Microeconomics - - Distribution - - - Personal Income and Wealth Distribution
    • H21 - Public Economics - - Taxation, Subsidies, and Revenue - - - Efficiency; Optimal Taxation
    • H24 - Public Economics - - Taxation, Subsidies, and Revenue - - - Personal Income and Other Nonbusiness Taxes and Subsidies
    • H31 - Public Economics - - Fiscal Policies and Behavior of Economic Agents - - - Household
    • J22 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Time Allocation and Labor Supply

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