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The elasticity of taxable income of individuals in couples

Author

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  • John Creedy

    (Victoria University of Wellington)

  • Norman Gemmell

    (Victoria University of Wellington)

Abstract

This paper examines the effect on the elasticity of taxable income for individuals in couples, where there is no income splitting for tax purposes but joint decisions are taken regarding taxable incomes. Two approaches are considered. First, the effects of minimising the total tax increase arising from a marginal rate increase are examined. Second, the paper considers the effects of joint utility maximisation. In both cases, analytical results suggest the possibility that empirical taxable income elasticity estimates obtained while ignoring the distinction between individuals and couples can be biased, sometimes substantially. Thus, in the presence of individual income taxation, both taxable income elasticity and revenue response estimates could be expected to be quite different when those estimates are obtained while erroneously treating the behaviour of members of couple households as if they were separate individuals.

Suggested Citation

  • John Creedy & Norman Gemmell, 2020. "The elasticity of taxable income of individuals in couples," International Tax and Public Finance, Springer;International Institute of Public Finance, vol. 27(4), pages 931-950, August.
    • Handle: RePEc:kap:itaxpf:v:27:y:2020:i:4:d:10.1007_s10797-019-09581-6
    DOI: 10.1007/s10797-019-09581-6
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    Cited by:

    1. Nazila Alinaghi & John Creedy & Norman Gemmell, 2023. "Do couples bunch more? Evidence from partnered and single taxpayers," International Tax and Public Finance, Springer;International Institute of Public Finance, vol. 30(4), pages 1137-1184, August.
    2. Michaël Sicsic, 2022. "Does labour income react more to income tax or means‐tested benefits reforms?," Fiscal Studies, John Wiley & Sons, vol. 43(3), pages 291-319, September.
    3. Rainer Niemann & Mariana Sailer, 2023. "Is analytical tax research alive and kicking? Insights from 2000 until 2022," Journal of Business Economics, Springer, vol. 93(6), pages 1149-1212, August.

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    More about this item

    Keywords

    Income taxation; Taxable income; Elasticity of taxable income;
    All these keywords.

    JEL classification:

    • 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
    • H26 - Public Economics - - Taxation, Subsidies, and Revenue - - - Tax Evasion and Avoidance

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