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A program for weakly decomposable inequality measures by population subgroups

Author

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  • Pauline Mornet

    (Université Montpellier 1, UMR5474 LAMETA, F-34000 Montpellier, France)

Abstract

This note explains the use of the program of the (α,β)-decomposition of the α-Gini measures available in free access on the LAMETA's website: http://www.lameta.univ-montp1.fr/online/gini.html. Inspired by the recent works published about the weak decomposition of inequality measures, this macro allows targeting accurately the groups mainly responsible for income disparities appraised within a distribution, whether subdivided into one or several partitions. This tool enables parameters of sensitivity reflecting the political decision-maker's preferences to be involved in the structure of the within- and between-group inequality components. The within-group component embodies a parameter of inequality aversion α whereas the between-group component includes both parameters α and β, such that β is the sensitivity towards between-group non-overlappings.

Suggested Citation

  • Pauline Mornet, 2013. "A program for weakly decomposable inequality measures by population subgroups," Economics Bulletin, AccessEcon, vol. 33(3), pages 1738-1750.
    • Handle: RePEc:ebl:ecbull:eb-13-00236
    as

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    References listed on IDEAS

    as
    1. Shorrocks, A F, 1980. "The Class of Additively Decomposable Inequality Measures," Econometrica, Econometric Society, vol. 48(3), pages 613-625, April.
    2. Célestin Chameni Nembua, 2006. "Linking Gini to Entropy : Measuring Inequality by an interpersonal class of indices," Economics Bulletin, AccessEcon, vol. 4(5), pages 1-9.
    3. repec:ebl:ecbull:v:4:y:2003:i:3:p:1-5 is not listed on IDEAS
    4. Arthur Charpentier & Stéphane Mussard, 2011. "Income inequality games," The Journal of Economic Inequality, Springer;Society for the Study of Economic Inequality, vol. 9(4), pages 529-554, December.
    5. Stéphane Mussard & Michel Terraza, 2009. "Décompositions des mesures d'inégalité : le cas des coefficients de Gini et d'entropie," Recherches économiques de Louvain, De Boeck Université, vol. 75(2), pages 151-181.
    6. repec:ebl:ecbull:v:4:y:2003:i:7:p:1-6 is not listed on IDEAS
    7. Ebert, Udo, 2010. "The decomposition of inequality reconsidered: Weakly decomposable measures," Mathematical Social Sciences, Elsevier, vol. 60(2), pages 94-103, September.
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    More about this item

    Keywords

    α-Gini measures; Inequality aversion; Sensitivity towards between-group non-overlappings; Weak decomposition.;
    All these keywords.

    JEL classification:

    • D3 - Microeconomics - - Distribution
    • D6 - Microeconomics - - Welfare Economics

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