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Does inequality constrain the power to tax? Evidence from the OECD

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  • Islam, Md. Rabiul
  • Madsen, Jakob B.
  • Doucouliagos, Hristos

Abstract

We investigate the consequences of income inequality on the income tax-to-GDP ratio for 21 OECD countries over a long time period spanning 1870 to 2011. We use several identification strategies, including using unionization as a new IV for inequality. In contrast to predictions from median voter models, we find that rising inequality significantly depresses the income tax ratio. This finding is robust to alternative measures of inequality, treatment for endogeneity, and model specification. The tax ratio increases with the degree of democracy. Inequality also reduces the indirect tax ratio, alters the tax structure, and moderates government spending as a share of GDP.

Suggested Citation

  • Islam, Md. Rabiul & Madsen, Jakob B. & Doucouliagos, Hristos, 2018. "Does inequality constrain the power to tax? Evidence from the OECD," European Journal of Political Economy, Elsevier, vol. 52(C), pages 1-17.
    • Handle: RePEc:eee:poleco:v:52:y:2018:i:c:p:1-17
    DOI: 10.1016/j.ejpoleco.2017.02.006
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    4. Achillefs Karakotsios & Constantinos Katrakilidis & Dimitrios Dimitriadis & Theodoros Christoforidis, 2020. "Examining the relationship between income inequality, taxation and economic freedom: a panel cointegration approach," Economics and Business Letters, Oviedo University Press, vol. 9(3), pages 206-215.
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    8. Mihai MUTASCU & Nicolae-Bogdan IANC & Albert LESSOUA, 2021. "Public debt and inequality in Sub-Saharan Africa: the case of EMCCA and WAEMU countries," LEO Working Papers / DR LEO 2911, Orleans Economics Laboratory / Laboratoire d'Economie d'Orleans (LEO), University of Orleans.
    9. Paetzel, Fabian & Lorenz, Jan & Tepe, Markus, 2018. "Transparency diminishes framing-effects in voting on redistribution: Some experimental evidence," European Journal of Political Economy, Elsevier, vol. 55(C), pages 169-184.
    10. Kuhn, Andreas, 2019. "The subversive nature of inequality: Subjective inequality perceptions and attitudes to social inequality," European Journal of Political Economy, Elsevier, vol. 59(C), pages 331-344.
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    More about this item

    Keywords

    Tax ratio; inequality; Fiscal policy; OECD;
    All these keywords.

    JEL classification:

    • H2 - Public Economics - - Taxation, Subsidies, and Revenue
    • E25 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Aggregate Factor Income Distribution

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