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Optimal insurance coverage of low probability-high severity risks

Author

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  • Alexis Louaas

    (X-DEP-ECO - Département d'Économie de l'École Polytechnique - X - École polytechnique)

  • Pierre Picard

    (X - École polytechnique)

Abstract

Catastrophic risks are often characterized by a low probability and a high severity. Taking these specificities into account, we analyze the intrinsic reasons for which catastrophic risks may be more or less insurable, independently from the market failures frequently observed in practice. On the demand side, we characterize individual preferences under which the willingness to pay for the coverage of large losses remains significant, although their occurrence probability is very small. On the supply side, the correlation between individual losses affects the insurance pricing through the insurers' cost of capital. Analyzing the interaction between demand and supply yields the key determinants of insurability and of a socially optimal risk sharing strategy.

Suggested Citation

  • Alexis Louaas & Pierre Picard, 2018. "Optimal insurance coverage of low probability-high severity risks," Working Papers hal-01924408, HAL.
    • Handle: RePEc:hal:wpaper:hal-01924408
    Note: View the original document on HAL open archive server: https://polytechnique.hal.science/hal-01924408
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    References listed on IDEAS

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    Cited by:

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    Keywords

    Disaster insurance; catastrophic risk; risk aversion; capital costs;
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