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Revenue-maximising tax rates and elasticities of taxable income inNew Zealand

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  • John Creedy
  • Norman Gemmell

Abstract

The empirical literature on the elasticity of taxable income (ETI) sometimes questions whether estimated values are consistent with being on the revenue-increasing section of the Laffer curve, usually in the context of a single rate tax system or for top marginal rates. This paper obtains expressions for this 'Laffer-maximum' or revenue-maximising ETI which can be applied to any tax rate in a multi-rate system. For the New Zealand income tax system in 2010, it is found that a wide range of revenue-maximising ETI values can be expected across individual taxpayers, across tax brackets and in aggregate. The paper also simulates the effect of multi-rate tax reforms on these revenue-maximising ETIs.

Suggested Citation

  • John Creedy & Norman Gemmell, 2015. "Revenue-maximising tax rates and elasticities of taxable income inNew Zealand," New Zealand Economic Papers, Taylor & Francis Journals, vol. 49(2), pages 189-206, August.
    • Handle: RePEc:taf:nzecpp:v:49:y:2015:i:2:p:189-206
    DOI: 10.1080/00779954.2014.893860
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    References listed on IDEAS

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    1. Creedy, John & Gemmell, Norman, 2012. "Revenue-Maximising Elasticities of Taxable Income in Multi-Rate Income Tax Structures," Working Paper Series 18713, Victoria University of Wellington, Chair in Public Finance.
    2. John Creedy & Norman Gemmell, 2006. "Modelling Tax Revenue Growth," Books, Edward Elgar Publishing, number 4073.
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    Cited by:

    1. Sanz-Sanz, José Félix, 2022. "A full-fledged analytical model for the Laffer curve in personal income taxation," Economic Analysis and Policy, Elsevier, vol. 73(C), pages 795-811.
    2. Menichini, Amilcar A., 2020. "How do firm characteristics affect the corporate income tax revenue?," International Review of Economics & Finance, Elsevier, vol. 65(C), pages 146-162.

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