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Lifelong health insurance covers with surrender values: updating mechanisms in the presence of medical inflation

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  • Dhaene, Jan
  • Godecharle, Els
  • Antonio, Katrien
  • Denuit, Michel
  • Hanbali, Hamza

Abstract

This paper considers the problem of a lifelong health insurance cover where medical inflation is not sufficiently incorporated in the level premium determined at policy issue. We focus on the setting where changes in health benefits, driven by medical inflation, are accounted for by an appropriate update or indexation of the level premium, the policy value, or both premium and policy value, during the term of the contract. Such an updating mechanism is necessary to restore the actuarial equivalence between future health benefits and surrender values on the one hand, and available policy values and future premiums on the other hand. We extend existing literature (Vercruysse et al., 2013; Denuit et al., 2017) by developing updating mechanisms in a discrete-time framework, where medical inflation is only taken into account ex-post as it emerges over time and where surrender values are allowed for. We propose and design two types of surrender values: based on the ageing provision on the one hand and based directly on the premiums paid until surrender on the other hand. We illustrate our updating strategy with numerical examples, using Belgian data, and investigate the sensitivity of our findings with respect to elements from the technical basis (in particular: the lapse rates) used in the actuarial calculations. Our updating mechanism is generic and useful for a wide range of products in life and health insurance, where some elements of the technical basis are guaranteed while others are subject to revision according to policy conditions.
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Suggested Citation

  • Dhaene, Jan & Godecharle, Els & Antonio, Katrien & Denuit, Michel & Hanbali, Hamza, 2017. "Lifelong health insurance covers with surrender values: updating mechanisms in the presence of medical inflation," LIDAM Reprints ISBA 2017036, Université catholique de Louvain, Institute of Statistics, Biostatistics and Actuarial Sciences (ISBA).
    • Handle: RePEc:aiz:louvar:2017036
    Note: In : ASTIN Bulletin, vol. 47, p. 803-836 (2017)
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    Cited by:

    1. Hanbali, Hamza & Claassens, Hubert & Denuit, Michel & Dhaene, Jan & Trufin, Julien, 2019. "Once covered, forever covered: The actuarial challenges of the Belgian private health insurance system," Health Policy, Elsevier, vol. 123(10), pages 970-975.
    2. Hanbali, Hamza & Denuit, Michel & Dhaene, Jan & Trufin, Julien, 2019. "A dynamic equivalence principle for systematic longevity risk management," Insurance: Mathematics and Economics, Elsevier, vol. 86(C), pages 158-167.

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