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Time-inconsistent health behavior and its impact on aging and longevity

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  • Strulik, Holger
  • Werner, Katharina
Abstract
We integrate time-inconsistent decision making due to hyperbolic discounting into a gerontologically founded life cycle model with endogenous aging and longevity. Individuals can slow down aging and postpone death by health investments and by reducing unhealthy consumption, conceptualized as smoking. We show that individuals continuously revise their original plans to smoke less and invest more in their health. Consequently, they accumulate health deficits faster and die earlier than originally planned. This fundamental health consequence of time-inconsistency has not been addressed in the literature so far. Because death is endogenous, any attempt to establish the time-consistent first-best solution by manipulating the first order conditions through (sin-) taxes and subsidies is bound to fail. We calibrate the model with U.S. data for an average American in the year 2010 and estimate that time-inconsistent health behavior causes a loss of about 5 years of life. We show how price policy can nudge individuals to behave more healthy such that they actually realize the longevity and value of life planned at age 20.

Suggested Citation

  • Strulik, Holger & Werner, Katharina, 2019. "Time-inconsistent health behavior and its impact on aging and longevity," University of Göttingen Working Papers in Economics 381, University of Goettingen, Department of Economics.
    • Handle: RePEc:zbw:cegedp:381
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    References listed on IDEAS

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    5. Holger Strulik & Volker Grossmann, 2024. "Beyond Covid: Pandemics and the Economics of Aging and Longevity," CESifo Working Paper Series 11104, CESifo.
    6. Volker Grossmann, 2021. "Medical Innovations and Ageing: A Health Economics Perspective," CESifo Working Paper Series 9387, CESifo.

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    More about this item

    Keywords

    present bias; time-inconsistency; health behavior; aging; longevity; health policy;
    All these keywords.

    JEL classification:

    • D03 - Microeconomics - - General - - - Behavioral Microeconomics: Underlying Principles
    • D11 - Microeconomics - - Household Behavior - - - Consumer Economics: Theory
    • D91 - Microeconomics - - Micro-Based Behavioral Economics - - - Role and Effects of Psychological, Emotional, Social, and Cognitive Factors on Decision Making
    • I10 - Health, Education, and Welfare - - Health - - - General
    • I12 - Health, Education, and Welfare - - Health - - - Health Behavior

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