Title Exponential bounds for the tail probability of the supremum of an inhomogeneous random walk /
Authors Kievinaitė, Dominyka ; Šiaulys, Jonas
DOI 10.15559/18-VMSTA99
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Is Part of Modern stochastics: theory and applications.. Vilnius; Kiev : VTeX. 2018, Vol. 5, no. 2, p. 129-143.. ISSN 2351-6054. eISSN 2351-6054
Keywords [eng] Exponential bound ; supremum of sums ; tail probability ; risk model ; inhomogeneity ; ruin probability ; Lundberg's inequality
Abstract [eng] Let {ξ1,ξ2,…} be a sequence of independent but not necessarily identically distributed random variables. In this paper, the sufficient conditions are found under which the tail probability P(supn⩾0∑ni=1ξi>x) can be bounded above by ϱ1exp{−ϱ2x} with some positive constants ϱ1 and ϱ2 . A way to calculate these two constants is presented. The application of the derived bound is discussed and a Lundberg-type inequality is obtained for the ultimate ruin probability in the inhomogeneous renewal risk model satisfying the net profit condition on average.
Published Vilnius; Kiev : VTeX
Type Journal article
Language English
Publication date 2018