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Inequality decomposition values : the trade-off between marginality and consistency

Author

Listed:
  • F. Chantreuil
  • A. Trannoy

Abstract

Une procédure générale inspirée par la valeur de Shapley est proposée pour décomposer n'importe quel indice d'inégalité par sources de revenu ou sous-groupes de population. Deux types de jeux d'inégalité sont ainsi définis. Bien que ces jeux ne puissent pas être exprimés en termes de jeux d'unanimité, une axiomatisation de la décomposition de Shapley est fournie dans ce contexte en utilisant la fonction "potentiel" mise en avant par Hart et Mas-Colell (1989). Ce résultat est utilisé pour illustrer le conflit entre les propriétés de cohérence et de marginalité. Une comparaison avec la méthode proposée par Shorrocks (1982) est offerte pour le cas de la décomposition par sources de revenu. Un raffinement de la décomposition de Shapley est introduit lorsque l'ensemble des sources a une structure emboîtée. Une application à la décomposition par sous-groupes de population est également discutée.
(This abstract was borrowed from another version of this item.)

Suggested Citation

  • F. Chantreuil & A. Trannoy, 1999. "Inequality decomposition values : the trade-off between marginality and consistency," Thema Working Papers 99-24, THEMA (Théorie Economique, Modélisation et Applications), CY Cergy-Paris University, ESSEC and CNRS.
    • Handle: RePEc:ema:worpap:99-24
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    JEL classification:

    • D63 - Microeconomics - - Welfare Economics - - - Equity, Justice, Inequality, and Other Normative Criteria and Measurement
    • C71 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Cooperative Games

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