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The first passage event for sums of dependent lévy processes with applications to insurance risk

  • Technical University of Munich

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

For the sum process X = X1 + X2 of a bivariate Lévy process (X1, X2) with possibly dependent components, we derive a quintuple law describing the first upwards passage event of X over a fixed barrier, caused by a jump, by the joint distribution of five quantities: the time relative to the time of the previous maximum, the time of the previous maximum, the overshoot, the undershoot and the undershoot of the previous maximum. The dependence between the jumps of X1 and X 2 is modeled by a Lévy copula. We calculate these quantities for some examples, where we pay particular attention to the influence of the dependence structure. We apply our findings to the ruin event of an insurance risk process.

Original languageEnglish
Pages (from-to)2047-2079
Number of pages33
JournalAnnals of Applied Probability
Volume19
Issue number6
DOIs
StatePublished - Nov 2009

Keywords

  • Dependence modeling
  • First passage event
  • Fluctuation theory
  • Ladder process
  • Lévy copula
  • Multivariate Lévy process
  • Ruin theory

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