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Moral Hazard Heterogeneity: Genes and Health Insurance Influence Smoking after a Health Shock

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  • Biroli, Pietro

    (University of Bologna)

  • Zwyssig, Laura

    (University of Zurich)

Abstract

Decision-making in the realm of health behaviors, such as smoking or drinking, is influenced both by biological factors, such as genetic predispositions, as well as environmental factors, such as financial liquidity and health insurance status. We show how the choice of smoking after a cardio-vascular health shock is jointly determined by the interplay between these biological and environmental constraints. Individuals who suffer a health shock when uninsured are 25.6 percentage points more likely to reduce smoking, but this is true only for those who have a low index of genetic predisposition to smoking. Individuals with a low index of genetic predisposition are more strategic and flexible in their behavioral response to an external shock. This differential elasticity of response depending on your genetic variants is evidence of individual-level heterogeneity in moral hazard. These results suggest that genetic heterogeneity is a factor that should be considered when evaluating the effectiveness and fairness of health insurance policies.

Suggested Citation

  • Biroli, Pietro & Zwyssig, Laura, 2021. "Moral Hazard Heterogeneity: Genes and Health Insurance Influence Smoking after a Health Shock," IZA Discussion Papers 14176, Institute of Labor Economics (IZA).
    • Handle: RePEc:iza:izadps:dp14176
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    Cited by:

    1. Rita Dias Pereira & Pietro Biroli & Titus Galama & Stephanie von Hinke & Hans van Kippersluis & Cornelius A. Rietveld & Kevin Thom, 2022. "Gene-Environment Interplay in the Social Sciences," Papers 2203.02198, arXiv.org, revised Aug 2022.
    2. Silvia H. Barcellos & Leandro Carvalho & Patrick Turley, 2021. "The Effect of Education on the Relationship between Genetics, Early-Life Disadvantages, and Later-Life SES," NBER Working Papers 28750, National Bureau of Economic Research, Inc.
    3. Barban, Nicola & De Cao, Elisabetta & Francesconi, Marco, 2021. "Gene‐Environment Effects on Female Fertility," CINCH Working Paper Series (since 2020) 74910, Duisburg-Essen University Library, DuEPublico.

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    More about this item

    Keywords

    moral hazard; genetics; smoking; medicare;
    All these keywords.

    JEL classification:

    • I12 - Health, Education, and Welfare - - Health - - - Health Behavior
    • I13 - Health, Education, and Welfare - - Health - - - Health Insurance, Public and Private
    • D63 - Microeconomics - - Welfare Economics - - - Equity, Justice, Inequality, and Other Normative Criteria and Measurement
    • D91 - Microeconomics - - Micro-Based Behavioral Economics - - - Role and Effects of Psychological, Emotional, Social, and Cognitive Factors on Decision Making

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