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Ruin probability and time of ruin with a proportional reinsurance threshold strategy

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In this paper, we present a threshold proportional reinsurance strategy and we analyze the effect on some solvency measures: ruin probability and time of ruin. This dynamic reinsurance strategy assumes a retention level that is not constant and depends on the level of the surplus. In a model with inter-occurrence times being generalized Erlang(n)-distributed, we obtain the integro-differential equation for the Gerber-Shiu function. Then, we present the solution for inter-occurrence times exponentially distributed and claim amount phase-type(N). Some examples for exponential and phase-type(2) claim amount are presented. Finally, we show some comparisons between threshold reinsurance and proportional reinsurance.

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CASTAÑER, Anna, CLARAMUNT BIELSA, M. mercè, MÁRMOL, Maite. Ruin probability and time of ruin with a proportional reinsurance threshold strategy. _TOP_. 2012. Vol. 20, núm. 3, pàgs. 614-638. [consulta: 21 de gener de 2026]. ISSN: 1134-5764. [Disponible a: https://hdl.handle.net/2445/102784]

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