Abstract
This chapter provides asymptotic expressions for the ruin probability in the regime that the initial reserve level u grows large. One needs to distinguish between the case that the claim sizes are light-tailed, in which the ruin probability decays essentially exponentially, and the case that the claim sizes are heavy-tailed, in which the ruin probability decays as the complementary distribution function of a residual claim size. While the focus in this chapter is on the asymptotics of the all-time ruin probability \(p(u)\), we also briefly discuss the asymptotics of its finite-time counterpart \(p(u,t).\) We conclude this chapter by some comments on another limiting regime, corresponding to the heavy-traffic scaling in queueing theory.
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Mandjes, M., Boxma, O. (2023). Asymptotics. In: The Cramér–Lundberg Model and Its Variants. Springer Actuarial(). Springer, Cham. https://doi.org/10.1007/978-3-031-39105-7_2
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DOI: https://doi.org/10.1007/978-3-031-39105-7_2
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