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Review of Economic Studies Vol. 73 No. 1 2006

Fair Income Tax

Marc Fleurbaey1; François Maniquet2

1 Centre National de la Recherche Scientifique · 2 University of Louvain-La-Neuve and CORE

Abstract

In a model where agents have unequal skills and heterogeneous preferences over consumption and leisure, we look for the optimal tax on the basis of efficiency and fairness principles and under incentive-compatibility constraints. The fairness principles considered here are: (1) a weak version of the Pigou-Dalton transfer principle; (2) a condition precluding redistribution when all agents have the same skills. With such principles we construct and justify specific social preferences and derive a simple criterion for the evaluation of income tax schedules. Namely, the lower the greatest average tax rate over the range of low incomes, the better. We show that, as a consequence, the optimal tax should give the greatest subsidies to the working poor (the agents having the lowest skill and choosing the largest labour time).

DOI
10.1111/j.1467-937x.2006.00369.x
Volume
73
Issue
1
Pages
55-83
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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