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- W4300170384 abstract "We study the ruin problem over a risk process described by a discrete-time Markov model. In contrast to previous studies that focused on the asymptotic behaviour of ruin probabilities for large values of the initial capital, we provide a new technique to compute the quantity of interest for any initial value, and with any given precision. Rather than focusing on a particular model for risk processes, we give a general characterization of the ruin probability by providing corresponding recursions and fixpoint equations. Since such equations for the ruin probability are ill-posed in the sense that they do not allow for unique solutions, we approximate the ruin probability by a two-barrier ruin probability, for which fixpoint equations are well-posed. We also show how good the introduced approximation is by providing an explicit bound on the error and by characterizing the cases when the error converges to zero. The presented technique and results are supported by two computational examples over models known in the literature, one of which is extremely heavy-tailed." @default.
- W4300170384 created "2022-10-03" @default.
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- W4300170384 date "2013-08-23" @default.
- W4300170384 modified "2023-10-18" @default.
- W4300170384 title "Computation of ruin probabilities for general discrete-time Markov models" @default.
- W4300170384 doi "https://doi.org/10.48550/arxiv.1308.5152" @default.
- W4300170384 hasPublicationYear "2013" @default.
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