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- W4384927181 abstract "The aim of the paper is to model ambiguity in a randomized reinsurance stop-loss treaty. For this, we consider the lower envelope of the set of bivariate joint probability distributions having a precise discrete marginal and an ambiguous Bernoulli marginal. Under an independence assumption, since the lower envelope fails 2-monotonicity, inner/outer Dempster-Shafer approximations are considered, so as to select the optimal retention level by maximizing the lower expected insurer's annual profit under reinsurance. We show that the inner approximation is not suitable in the reinsurance problem, while the outer approximation preserves the given marginal information, weaken the independence assumption, and does not introduce spurious information in the retention level selection problem. Finally, we provide a characterization of the optimal retention level." @default.
- W4384927181 created "2023-07-22" @default.
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- W4384927181 date "2023-10-01" @default.
- W4384927181 modified "2023-09-27" @default.
- W4384927181 title "Addressing ambiguity in randomized reinsurance stop-loss treaties using belief functions" @default.
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- W4384927181 doi "https://doi.org/10.1016/j.ijar.2023.108986" @default.
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