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Redistribution et incitations au travail. Une application empirique simple de la fiscalité optimale


  • François Bourguignon
  • Amedeo Spadaro


[fre] En offrant une garantie de revenu minimum à ceux dont le revenu primaire se trouve en dessous d'un niveau de vie acceptable, les systèmes de redistribution en vigueur dans la plupart des pays européens pourraient détourner du marché du travail, peut-être durablement, les bénéficiaires de cette garantie. Dans une perspective statique et sous des hypothèses alternatives concernant l'élasticité de l'offre de travail et la fonction de bien-être social, on montre ici que, si un tel dispositif n'est pas en complet désaccord avec les enseignements d'un modèle de fiscalité optimale à la Mirrlees, les différences obtenues entre les barèmes optimaux et les barèmes réels de redistribution peuvent néanmoins être considérables. La mise en œuvre proposée ici du modèle de fiscalité optimale constitue une alternative originale aux approches économétriques standard des effets d'une réforme fiscale. [eng] Redistribution and labour supply incentives: a simple application of the optimal tax theory. . A growing concern appeared in many developed countries during the last ten years that generous redistribution systems might be detrimental to those they want to help. By guaranteeing a minimum income or an income supplement to those whose purchasing power would fall below some limit, these systems would be responsible for strong labour-supply disincentives, the cost of which may be very high. In a static framework and under alternative specifications of the labour supply elasticities and the social welfare function, we show, in this paper, that, even if such a mechanism is not in complete disagreement with the Mirrlees optimal tax model, the difference between optimal and real tax rates can be high. The proposed implementation of the optimal tax model can be considered as an original alternative to the standard econometric approach to the analysis of fiscal reforms.

Suggested Citation

  • François Bourguignon & Amedeo Spadaro, 2000. "Redistribution et incitations au travail. Une application empirique simple de la fiscalité optimale," Revue Économique, Programme National Persée, vol. 51(3), pages 473-487.
  • Handle: RePEc:prs:reveco:reco_0035-2764_2000_num_51_3_410529
    Note: DOI:10.3406/reco.2000.410529

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    Cited by:

    1. Olivier Bargain, 2008. "Normative evaluation of tax policies: from households to individuals," Journal of Population Economics, Springer;European Society for Population Economics, vol. 21(2), pages 339-371, April.
    2. François Bourguignon & Amedeo Spadaro, 2012. "Tax–benefit revealed social preferences," The Journal of Economic Inequality, Springer;Society for the Study of Economic Inequality, vol. 10(1), pages 75-108, March.
    3. François Bourguignon, 2001. "Revenu minimum et redistribution optimale des revenus : fondements théoriques," Économie et Statistique, Programme National Persée, vol. 346(1), pages 187-204.
    4. Ben Mimoun Mohamed, 2005. "Redistribution Through Education and Other Mechanisms Under Capital-Market Imperfections and Uncertainty: A Welfare Effect Analysis," LABOUR, CEIS, vol. 19(2), pages 191-236, June.
    5. François Legendre, 2004. "Micro-simulation et évaluation des politiques économiques et sociale : un panorama des développements récents en France," Revue d'économie politique, Dalloz, vol. 114(1), pages 17-53.
    6. Philippe Mongin, 2008. "Sur le revenu de solidarité active," Revue d'économie politique, Dalloz, vol. 118(4), pages 433-474.

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