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Linking period and cohort life-expectancy linear increases in Gompertz proportional hazards models

Author

Listed:
  • Trifon Missov

    (Syddansk Universitet)

  • Adam Lenart

    (Syddansk Universitet)

Abstract

In a Gompertz mortality model with constant yearly improvements at all ages, linear increases in period life expectancy correspond to linear increases in the respective cohort life expectancy. The link between the two measures can be given by a simple approximate relationship.

Suggested Citation

  • Trifon Missov & Adam Lenart, 2011. "Linking period and cohort life-expectancy linear increases in Gompertz proportional hazards models," Demographic Research, Max Planck Institute for Demographic Research, Rostock, Germany, vol. 24(19), pages 455-468.
    • Handle: RePEc:dem:demres:v:24:y:2011:i:19
    DOI: 10.4054/DemRes.2011.24.19
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    References listed on IDEAS

    as
    1. Vladimir Canudas-Romo & Robert Schoen, 2005. "Age-specific contributions to changes in the period and cohort life expectancy," Demographic Research, Max Planck Institute for Demographic Research, Rostock, Germany, vol. 13(3), pages 63-82.
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    Cited by:

    1. Missov, Trifon I. & Lenart, Adam, 2013. "Gompertz–Makeham life expectancies: Expressions and applications," Theoretical Population Biology, Elsevier, vol. 90(C), pages 29-35.
    2. Ayuso, Mercedes & Bravo, Jorge M. & Holzmann, Robert, 2021. "Getting life expectancy estimates right for pension policy: period versus cohort approach," Journal of Pension Economics and Finance, Cambridge University Press, vol. 20(2), pages 212-231, April.
    3. Shama, M.S. & Dey, Sanku & Altun, Emrah & Afify, Ahmed Z., 2022. "The Gamma–Gompertz distribution: Theory and applications," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 193(C), pages 689-712.
    4. Søren Kjærgaard & Vladimir Canudas-Romo, 2017. "Potential support ratios: Cohort versus period perspectives," Population Studies, Taylor & Francis Journals, vol. 71(2), pages 171-186, May.
    5. Nico Keilman, 2019. "Mortality shifts and mortality compression in period and cohort life tables," Demographic Research, Max Planck Institute for Demographic Research, Rostock, Germany, vol. 41(40), pages 1147-1196.
    6. Luis Rosero-Bixby & William H. Dow & David H. Rehkopf, 2013. "The Nicoya region of Costa Rica: a high longevity island for elderly males," Vienna Yearbook of Population Research, Vienna Institute of Demography (VID) of the Austrian Academy of Sciences in Vienna, vol. 11(1), pages 109-136.

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    More about this item

    Keywords

    period life expectancy; cohort life expectancy; Gompertz mortality; Linear Shift Models;
    All these keywords.

    JEL classification:

    • J1 - Labor and Demographic Economics - - Demographic Economics
    • Z0 - Other Special Topics - - General

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