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Comparaisons de distributions hétérogènes et critères de dominance

  • Patrick Moyes

[eng] Comparisons of Heterogeneous Distributions and dominance Criteria by Patrick Moyes This paper looks at standard-of-living comparisons when observations of both income and household structure are available. We generalise the Atkinson and Bourguignon approach (1987) in the case where marginal distributions of needs can vary across the household populations studied. We assume that considerate planners use a utilitarian social welfare function to rank heterogeneous income distributions. Insofar as any individual can play the role of planner, we take the unanimist point of view that the planner's judgements have to comply with a certain number of basic normative principles. We impose increasingly restrictive conditions on the household's utility function and study their effects on the resulting ranking of distributions. This leads us to propose four dominance criteria to be used for an unambiguous ranking of income distributions for heterogeneous populations. [fre] Comparaisons de distributions hétérogènes et critères de dominance par Patrick Moyes Cet article porte sur la comparaison des niveaux de vie lorsque l'on dispose à la fois d'observations sur les revenus et sur la composition des ménages. Nous généralisons l'approche d'Atkinson et Bourguignon (1987) dans le cas où les distributions marginales des besoins peuvent varier entre les populations des ménages considérées. Nous supposons que le planificateur bienveillant a recours à une fonction de bien-être social utilitariste pour classer les distributions de revenus hétérogènes. Dans la mesure où tout individu peut jouer le rôle du planificateur, nous adopterons le point de vue unanimiste suivant lequel les jugements du planificateur doivent se conformer à un certain nombre de principes normatifs élémentaires. Nous imposons des conditions de plus en plus restrictives sur la fonction d'utilité du ménage et examinons leurs conséquences sur le classement des distributions qui en résulte. Ceci nous conduit à proposer quatre critères de dominance permettant de classer sans ambiguïté les distributions de revenu pour des populations hétérogènes.

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Article provided by Programme National Persée in its journal Économie & prévision.

Volume (Year): 138 (1999)
Issue (Month): 2 ()
Pages: 125-146

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Handle: RePEc:prs:ecoprv:ecop_0249-4744_1999_num_138_2_5963
Note: DOI:10.3406/ecop.1999.5963
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