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Measuring Progressivity and Inequality

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  • DUCLOS, Jean-Yves

Abstract

A general class of progressivity indices is proposed which is consistent with the well-developed theory of the measurement of inequality and social welfare. In particular, we show that the more progressive a tax system, the more equal the distribution of net income and the greater the progressivity index. For an additive social welfare function and a progressive tax system, the greater the degree of relative inequality aversion, the greater the progressivity index. We also discuss the link between inequality of gross income and tax progressivity. A by-product is the derivation of a general class of inequality measures that are invariant to equi-proportionate changes in incomes. We illustrate the analysis using the British tax and benefit system.

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Bibliographic Info

Paper provided by Université Laval - Département d'économique in its series Cahiers de recherche with number 9525.

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Date of creation: 1995
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Handle: RePEc:lvl:laeccr:9525

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Keywords: Progressivity; redistribution; inequality; social welfare;

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Cited by:
  1. Duclos, Jean-Yves & Jalbert, Vincent & Araar, Abdelkrim, 2000. "Classical Horizontal Inequity and Reranking: an Integrated Approach," Cahiers de recherche 0002, Université Laval - Département d'économique.
  2. Duclos, Jean-Yves & Jalbert, Vincent & Araar, Abdelkrim, 2003. "Classical Horizontal Inequity and Reranking: an Integrating Approach," Cahiers de recherche 0306, CIRPEE.

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