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Optimal reinsurance design : a mean-variance approach

Recurso electrónico / Electronic resource
Registro MARC
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100  ‎$0‎MAPA20110012106‎$a‎Chi, Yichun
24510‎$a‎Optimal reinsurance design‎$b‎: a mean-variance approach‎$c‎Yichun Chi and Ming Zhou
520  ‎$a‎In this article, we study an optimal reinsurance model fromthe perspective of an insurer who has a generalmean-variance preference. In order to reduce ex post moral hazard, we assume that both parties in a reinsurance contract are obligated to pay more for a larger realization of loss.We further assume that the reinsurance premium is calculated only based on the mean and variance of the indemnity. This class of premium principles is quite general in the sense that it includes many widely used premium principles such as expected value, mean value, variance, and standard deviation principles. Moreover, to protect the insurer¿s profit, a lower bound is imposed on its expected return. We show that any admissible reinsurance policy is dominated by a change-loss reinsurance or a dual change-loss reinsurance, depending upon the coefficient of variation of the ceded loss. Further, the change-loss reinsurance is shown to be optimal if the premium loading increases in the actuarial value of the coverage; while it becomes decreasing, the optimal reinsurance policy is in the form of dual change loss. As a result, the quota-share reinsurance is always optimal for any variance-related reinsurance premium principle. Finally, some numerical examples are applied to illustrate the applicability of the theoretical results.
650 4‎$0‎MAPA20080602529‎$a‎Mercado de reaseguros
650 4‎$0‎MAPA20080579258‎$a‎Cálculo actuarial
650 4‎$0‎MAPA20080602437‎$a‎Matemática del seguro
7001 ‎$0‎MAPA20170005469‎$a‎Zhou, Ming
7730 ‎$w‎MAP20077000239‎$t‎North American actuarial journal‎$d‎Schaumburg : Society of Actuaries, 1997-‎$x‎1092-0277‎$g‎01/03/2017 Tomo 21 Número 1 - 2017 , p. 1-14