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Reduced Tax Progressivity in Norway in the Nineties: The Effect from Tax Changes

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  • Thor O. Thoresen

Abstract

The inequality in pre-tax income increased in Norway in the 1990s, while the concentration of taxes remained largely unaltered. This means that tax progressivity has decreased in the period, as measured by summary indices of tax progressivity. In this paper I analyze individual income data to ascertain whether tax changes in the period can explain the observed decrease in tax progressivity. As marginal tax rates at high income levels have been substantially reduced in the period, for instance through the tax reform of 1992, it is expected that tax changes may have influenced the degree of inequality in pre-tax incomes. This behavioral effect is examined by deriving estimates of the elasticity of gross income with respect to the net-of-tax rate, obtained from various panel data regressions. The tax changes may also have shifted the distributional burden of taxes for unaltered level of pre-tax income inequality. In order to identify this (direct) effect of tax-law alterations, the same fixed distribution of pre-tax income is exposed to various tax-laws in the period.

Suggested Citation

  • Thor O. Thoresen, 2004. "Reduced Tax Progressivity in Norway in the Nineties: The Effect from Tax Changes," International Tax and Public Finance, Springer;International Institute of Public Finance, vol. 11(4), pages 487-506, August.
    • Handle: RePEc:kap:itaxpf:v:11:y:2004:i:4:p:487-506
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    References listed on IDEAS

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    1. Karl Ove Aarbu & Thor Olav Thoresen, 1997. "The Norwegian Tax Reform; Distributional Effects and the High-income Response," Discussion Papers 207, Statistics Norway, Research Department.
    2. John Bishop & K. Chow & John Formby & Chih-Chin Ho, 1997. "Did Tax Reform Reduce Actual US Progressivity? Evidence from the Taxpayer Compliance Measurement Program," International Tax and Public Finance, Springer;International Institute of Public Finance, vol. 4(2), pages 177-197, May.
    3. John A. Bishop & K. Victor Chow & John P. Formby & C. C. Ho, "undated". "Tax Gaps and Tax Rates: New Evidence from the Taxpayer Compliance Measurement Program," Working Papers 9724, East Carolina University, Department of Economics.
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    More about this item

    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
    • J22 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Time Allocation and Labor Supply

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