On Decomposition of the Gini Index of Equality

Stéphane Mussard

Cahiers de recherche from Departement d'économique de l'École de gestion à l'Université de Sherbrooke

Abstract: The purpose of this paper is to show that the Gini index of equality is: (i) subgroup decomposable throughout interpersonal comparisons; (ii) decomposable by income source; (iii) decomposable both by subgroup and income source; (iv) and decomposable in a multidimensional context permitting statistical inference on equality components. These results entail that decision makers must use the Gini index of equality decompositions since they imply necessarily the computation of the Gini index of inequality decompositions. The reverse is not true.

Keywords: Gini index of equality; Multi-decomposition (search for similar items in EconPapers)
JEL-codes: D31 D63 (search for similar items in EconPapers)
Pages: 24 pages
Date: 2005
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http://gredi.recherche.usherbrooke.ca/wpapers/GREDI-0508.pdf First version, 2005 (application/pdf)

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Persistent link: https://EconPapers.repec.org/RePEc:shr:wpaper:05-09

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