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Social Preferences Revealed through Effective Marginal Tax Rates

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Author Info

  • Bourguignon, F.
  • Spadaro, A.

Abstract

This paper inverts the usual logic of the applied optimal income taxation literature. Standard practice analyzes the shape of the optimal tax schedule that is consistent with a given social welfare function, a statistical distribution of individual productivities that fits available data on labor incomes and given preferences between consumption and leisure. In this paper, we go the opposite direction. We start from the observed distribution of gross and disposable income within a population and from the observed marginal tax rates as computed in standard tax-benefit models. We then show that, under a set of simplifying assumptions, it is possible to identify the social welfare function that would make the observed marginal tax rate schedule optimal under some assumption about consumption-leisure preferences. This provides an alternative way of reading marginal tax rates calculations routinely provided by tax-benefit models. In that framework, the issue of the optimality of an existing tax-benefit system may be analyzed by considering whether the social welfare function associated with that system satisfies elementary properties. Likewise, the reform of an existing system may be seen as a change in the underlying social welfare function which may prove to be less consensual than the reform itself. A detailed application is given in the case of France, and of a basic income/flat tax reform of the tax-benefit system in that country. For comparability, an application is also made to several other EU countries.

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Bibliographic Info

Paper provided by DELTA (Ecole normale supérieure) in its series DELTA Working Papers with number 2000-29.

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Length: 29 pages
Date of creation: 2000
Date of revision:
Handle: RePEc:del:abcdef:2000-29

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Related research

Keywords: DISTRIBUTION ; TAXATION ; PRODUCTIVITY ; CONSUMPTION;

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Cited by:
  1. Cremer, Helmuth & Gahvari, Firouz & Ladoux, Norbert, 2011. "Energy taxes and oil price shock," LERNA Working Papers 12.15.372, LERNA, University of Toulouse.
  2. John Muellbauer & Justin Van de Ven, 2004. "Estimating Equivalence Scales for Tax and Benefits Systems," Economics Series Working Papers 2004-W06, University of Oxford, Department of Economics.
  3. Kessing, Sebastian G. & Konrad, Kai A., 2005. "Union Strategy and Optimal Income Taxation," IZA Discussion Papers 1545, Institute for the Study of Labor (IZA).

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