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Articles : Conférence François-Albert-Angers – 2008 - La mesure des inégalités de long terme avec des panels courts : 1990-2000

Author

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  • Bonhomme, Stéphane

    (Centro de Estudios Monetarios y Financieros (CEMFI))

  • Robin, Jean-Marc

    (Paris School of Economics, Université Paris|Panthéon Sorbonne, Universiy College London)

Abstract

In this paper, we build a model of earnings dynamics and estimate it on a representative three-year panel, the French Labour Force Survey. We use the model to simulate individual earnings trajectories beyond the period of observation, and to compute permanent income values. We measure the ratio between inequality in present values of lifetime earnings and current inequality. This ratio is less than one, showing that earnings mobility is equalizing. Morever, it is very sensitive to unemployement risk. Mobility reduces long-run inequality in a representative sample of employed and unemployed workers, in large part because unemployment is a transitory state. In contrast, unemployment risk generates a lot of inequality in the sample of employed workers, and reduces by one half the equalizing force of earnings mobility. Résumé : Dans cette étude, nous proposons un modèle de la dynamique salariale adapté à une estimation à partir de panels courts comme l’enquête Emploi. Nous utilisons le modèle pour simuler des trajectoires individuelles de salaires au-delà de la période d’enquête et calculer des revenus permanents. Nous mesurons le rapport entre l’inégalité de revenus permanents (inégalité de long terme) et l’inégalité salariale de coupe. Ce rapport est inférieur à un, preuve que la mobilité des revenus est égalisatrice. Cependant, nous constatons le rôle essentiel joué par le risque de chômage dans cette mesure. La mobilité réduit les inégalités sur le long terme dans un échantillon représentatif de travailleurs employés ou en chômage, en grande partie parce que le chômage ne dure pas éternellement. À l’inverse, le risque de chômage est fortement générateur d’inégalité dans l’échantillon des employés. Nous mesurons qu’il annule ainsi la moitié du bénéfice égalisateur de la mobilité salariale.

Suggested Citation

  • Bonhomme, Stéphane & Robin, Jean-Marc, 2008. "Articles : Conférence François-Albert-Angers – 2008 - La mesure des inégalités de long terme avec des panels courts : 1990-2000," L'Actualité Economique, Société Canadienne de Science Economique, vol. 84(4), pages 325-363, Décembre.
  • Handle: RePEc:ris:actuec:0006
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    References listed on IDEAS

    as
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