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Mortality, Time Preference and Life-Cycle Models

  • Antoine Bommier

    ()

    (GREMAQ - Groupe de recherche en économie mathématique et quantitative - CNRS - Institut national de la recherche agronomique (INRA) - UT1 - Université Toulouse 1 Capitole - EHESS - École des hautes études en sciences sociales)

This paper introduces a life-cycle model where impatience, instead of being driven by an exogenous discount function, results from the combination of risk aversion and mortality risks. Opting for such a formulation provides novel views on the impact of longevity extension on welfare, saving behavior and capital accumulation. In particular, we show that longevity extension may have much larger impacts on capital accumulation and equilibrium rate of interest than is usually thought. Moreover, we show that the adherence to the additive life cycle model introduced by Yaari (1965)may lead to significantly overstimating the welfare gains due to mortality risk reduction.

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Paper provided by HAL in its series Working Papers with number hal-00441888.

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Date of creation: 31 May 2006
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Handle: RePEc:hal:wpaper:hal-00441888
Note: View the original document on HAL open archive server: https://hal.archives-ouvertes.fr/hal-00441888
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  1. Abel, Andrew B, 1986. "Capital Accumulation and Uncertain Lifetimes with Adverse Selection," Econometrica, Econometric Society, vol. 54(5), pages 1079-97, September.
  2. Gary S. Becker & Casey B. Mulligan, 1997. "The Endogenous Determination of Time Preference," The Quarterly Journal of Economics, Oxford University Press, vol. 112(3), pages 729-758.
  3. Barro, Robert J & Friedman, James W, 1977. "On Uncertain Lifetimes," Journal of Political Economy, University of Chicago Press, vol. 85(4), pages 843-49, August.
  4. Jeffrey Brown & Jeffrey B. Liebman & Joshua Pollet, 2002. "Appendix. Estimating Life Tables That Reflect Socioeconomic Differences In Mortality," NBER Chapters, in: The Distributional Aspects of Social Security and Social Security Reform, pages 447-458 National Bureau of Economic Research, Inc.
  5. Bommier, Antoine & Rochet, Jean-Charles, 2003. "Risk Aversion and Planning Horizon," IDEI Working Papers 204, Institut d'Économie Industrielle (IDEI), Toulouse, revised Nov 2004.
  6. Ahn, Chang Mo, 1989. " The Effect of Temporal Risk Aversion on Optimal Consumption, the Equity Premium, and the Equilibrium Interest Rate," Journal of Finance, American Finance Association, vol. 44(5), pages 1411-20, December.
  7. Antoine Bommier, 2001. "Uncertain lifetime and intertemporal choice : risk aversion as a rationale for time discounting," Research Unit Working Papers 0108, Laboratoire d'Economie Appliquee, INRA.
  8. Antoine Bommier & Bertrand Villeneuve, 2004. "Risk Aversion and the Value of Risk to Life," CESifo Working Paper Series 1267, CESifo Group Munich.
  9. Jeffrey R. Brown, 1999. "Private Pensions, Mortality Risk, and the Decision to Annuitize," NBER Working Papers 7191, National Bureau of Economic Research, Inc.
  10. Antoine Bommier, 2005. "Life-Cycle Theory for Human Beings," Working Papers hal-00441890, HAL.
  11. Davies, James B, 1981. "Uncertain Lifetime, Consumption, and Dissaving in Retirement," Journal of Political Economy, University of Chicago Press, vol. 89(3), pages 561-77, June.
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