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Bounds for Right Tails of Deterministic and Stochastic Sums of Random Variables

par Darkiewicz, Grzegorz;Deelstra, Griselda ;Dhaene, Jan;Hoedemakers, Tom;Vanmaele, Michèle
Référence The Journal of risk and insurance, 76, 4, page (847-866)
Publication Publié, 2009

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Résumé :

We investigate lower and upper bounds for right tails (stop-loss premiums) of deterministic and stochastic sums of nonindependent random variables. The bounds are derived using the concepts of comonotonicity, convex order, and conditioning. The performance of the presented approximations is investigated numerically for individual life annuity contracts as well as for life annuity portfolios, where mortality is modeled by Makeham's law, whereas investment returns are modeled by a Brownian motion process. © The Journal of Risk and Insurance, 2009.