How Does Reinsurance Create Value to an Insurer? A Cost-Benefit Analysis Incorporating Default Risk

Reinsurance is often empirically hailed as a value-adding risk management strategy which an insurer can utilize to achieve various business objectives. In the context of a distortion-risk-measure-based three-party model incorporating a policyholder, insurer and reinsurer, this article formulates exp...

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Main Author: Ambrose Lo
Format: Article
Language:English
Published: MDPI AG 2016-12-01
Series:Risks
Subjects:
Online Access:http://www.mdpi.com/2227-9091/4/4/48
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author Ambrose Lo
author_facet Ambrose Lo
author_sort Ambrose Lo
collection DOAJ
description Reinsurance is often empirically hailed as a value-adding risk management strategy which an insurer can utilize to achieve various business objectives. In the context of a distortion-risk-measure-based three-party model incorporating a policyholder, insurer and reinsurer, this article formulates explicitly the optimal insurance–reinsurance strategies from the perspective of the insurer. Our analytic solutions are complemented by intuitive but scientifically rigorous explanations on the marginal cost and benefit considerations underlying the optimal insurance–reinsurance decisions. These cost-benefit discussions not only cast light on the economic motivations for an insurer to engage in insurance with the policyholder and in reinsurance with the reinsurer, but also mathematically formalize the value created by reinsurance with respect to stabilizing the loss portfolio and enlarging the underwriting capacity of an insurer. Our model also allows for the reinsurer’s failure to deliver on its promised indemnity when the regulatory capital of the reinsurer is depleted by the reinsured loss. The reduction in the benefits of reinsurance to the insurer as a result of the reinsurer’s default is quantified, and its influence on the optimal insurance–reinsurance policies analyzed.
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spelling doaj.art-935a70e608f74aa2b7ae631e1ed4047c2022-12-22T01:43:50ZengMDPI AGRisks2227-90912016-12-01444810.3390/risks4040048risks4040048How Does Reinsurance Create Value to an Insurer? A Cost-Benefit Analysis Incorporating Default RiskAmbrose Lo0Department of Statistics and Actuarial Science, The University of Iowa, 241 Schaeffer Hall, Iowa City, IA 52242-1409, USAReinsurance is often empirically hailed as a value-adding risk management strategy which an insurer can utilize to achieve various business objectives. In the context of a distortion-risk-measure-based three-party model incorporating a policyholder, insurer and reinsurer, this article formulates explicitly the optimal insurance–reinsurance strategies from the perspective of the insurer. Our analytic solutions are complemented by intuitive but scientifically rigorous explanations on the marginal cost and benefit considerations underlying the optimal insurance–reinsurance decisions. These cost-benefit discussions not only cast light on the economic motivations for an insurer to engage in insurance with the policyholder and in reinsurance with the reinsurer, but also mathematically formalize the value created by reinsurance with respect to stabilizing the loss portfolio and enlarging the underwriting capacity of an insurer. Our model also allows for the reinsurer’s failure to deliver on its promised indemnity when the regulatory capital of the reinsurer is depleted by the reinsured loss. The reduction in the benefits of reinsurance to the insurer as a result of the reinsurer’s default is quantified, and its influence on the optimal insurance–reinsurance policies analyzed.http://www.mdpi.com/2227-9091/4/4/48marginal costmarginal benefitdistortion1-LipschitzpremiumValue-at-RiskVaRTVaRcomonotonicitycounterparty risk
spellingShingle Ambrose Lo
How Does Reinsurance Create Value to an Insurer? A Cost-Benefit Analysis Incorporating Default Risk
Risks
marginal cost
marginal benefit
distortion
1-Lipschitz
premium
Value-at-Risk
VaR
TVaR
comonotonicity
counterparty risk
title How Does Reinsurance Create Value to an Insurer? A Cost-Benefit Analysis Incorporating Default Risk
title_full How Does Reinsurance Create Value to an Insurer? A Cost-Benefit Analysis Incorporating Default Risk
title_fullStr How Does Reinsurance Create Value to an Insurer? A Cost-Benefit Analysis Incorporating Default Risk
title_full_unstemmed How Does Reinsurance Create Value to an Insurer? A Cost-Benefit Analysis Incorporating Default Risk
title_short How Does Reinsurance Create Value to an Insurer? A Cost-Benefit Analysis Incorporating Default Risk
title_sort how does reinsurance create value to an insurer a cost benefit analysis incorporating default risk
topic marginal cost
marginal benefit
distortion
1-Lipschitz
premium
Value-at-Risk
VaR
TVaR
comonotonicity
counterparty risk
url http://www.mdpi.com/2227-9091/4/4/48
work_keys_str_mv AT ambroselo howdoesreinsurancecreatevaluetoaninsureracostbenefitanalysisincorporatingdefaultrisk