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Évolutions démographiques et déformation du cycle de la vie active. Quelles relations ?

Author

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  • Didier Blanchet
  • Fabien Toutlemonde

Abstract

Historical changes in the typical life-cycle do not conform to a simple model of equal-sharing in which additional years of life are equally distributed between time devoted to training, work and leisure. We have instead observed a quasi-general decline in the share of our life-cycles that is devoted to labour. The major reason for such a deviation is the fact that this life-cycle evolves in response to other factors, such as productivity, preferences and conditions for the accumulation and depreciation of human capital. We investigate the articulation of these different factors in a continuous-time model of life-cycle optimisation that allows a realistic treatment of demographic structure. The main motives for the contraction of working lives are global productivity and the importance of human capital depreciation. We show that the equal-sharing scenario requires a parallel evolution of productivity and consumption norms, and a shift in the profile of human capital depreciation that parallels the change in life expectancy. Code JEL : J11, J22, J24, J26

Suggested Citation

  • Didier Blanchet & Fabien Toutlemonde, 2008. "Évolutions démographiques et déformation du cycle de la vie active. Quelles relations ?," Revue économique, Presses de Sciences-Po, vol. 59(5), pages 995-1021.
    • Handle: RePEc:cai:recosp:reco_595_0995
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    Cited by:

    1. Marion Bachelet & Magali Beffy & Didier Blanchet, 2011. "Projeter l’impact des réformes des retraites sur l’activité des 55 ans et plus : une comparaison de trois modèles," Économie et Statistique, Programme National Persée, vol. 441(1), pages 123-143.

    More about this item

    JEL classification:

    • J11 - Labor and Demographic Economics - - Demographic Economics - - - Demographic Trends, Macroeconomic Effects, and Forecasts
    • J22 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Time Allocation and Labor Supply
    • J24 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Human Capital; Skills; Occupational Choice; Labor Productivity
    • J26 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Retirement; Retirement Policies

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