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Ruin probabilities for competing claim processes

Published online by Cambridge University Press:  14 July 2016

Miljenko Huzak*
Affiliation:
University of Zagreb
Mihael Perman*
Affiliation:
University of Ljubljana
Hrvoje Šikić*
Affiliation:
University of Zagreb
Zoran Vondraček*
Affiliation:
University of Zagreb
*
Postal address: Department of Mathematics, University of Zagreb, Bijenička c. 30, 10000 Zagreb, Croatia
∗∗ Postal address: Institute for Mathematics, Physics and Mechanics, Jadranska 19, 1000 Ljubljana, Slovenia
Postal address: Department of Mathematics, University of Zagreb, Bijenička c. 30, 10000 Zagreb, Croatia
Postal address: Department of Mathematics, University of Zagreb, Bijenička c. 30, 10000 Zagreb, Croatia

Abstract

Let C 1, C 2,…,C m be independent subordinators with finite expectations and denote their sum by C. Consider the classical risk process X(t) = x + ct - C(t). The ruin probability is given by the well-known Pollaczek–Khinchin formula. If ruin occurs, however, it will be caused by a jump of one of the subordinators C i . Formulae for the probability that ruin is caused by C i are derived. These formulae can be extended to perturbed risk processes of the type X(t) = x + ct - C(t) + Z(t), where Z is a Lévy process with mean 0 and no positive jumps.

Type
Research Papers
Copyright
Copyright © Applied Probability Trust 2004 

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