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Risk Sharing with Multiple Indemnity Environments

Asimit, A.V. ORCID: 0000-0002-7706-0066, Boonen, T. J., Chi, Y. & Chong, W. F. (2021). Risk Sharing with Multiple Indemnity Environments. European Journal of Operational Research, 295(2), pp. 587-603. doi: 10.1016/j.ejor.2021.03.012

Abstract

Optimal risk sharing arrangements have been substantially studied in the literature, from the aspects of generalizing objective functions, incorporating more business con- straints, and investigating different optimality criteria. This paper proposes an insur- ance model with multiple risk environments. We study the case where the two agents are endowed with the Value-at-Risk or the Tail Value-at-Risk, or when both agents are risk-neutral but have heterogeneous beliefs regarding the underlying probability distribution. We show that layer-type indemnities, within each risk environment, are Pareto optimal, which may be environment-specific. From Pareto optimality, we get that the premium can be chosen in a given interval, and we propose to allocate the gains from risk sharing equally between the buyer and seller.

Publication Type: Article
Additional Information: ©2021 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/ )
Publisher Keywords: Risk management, Optimal insurance, Multiple risk environments, Value-at-Risk, Tail Value-at-Risk, Heterogeneous beliefs, Environment-specific layer indemnities
Subjects: H Social Sciences > HD Industries. Land use. Labor > HD61 Risk Management
H Social Sciences > HG Finance
Departments: Bayes Business School > Actuarial Science & Insurance
SWORD Depositor:
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