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Subexponential distributions and dominated-variation tails

Published online by Cambridge University Press:  14 July 2016

Charles M. Goldie*
Affiliation:
University of Sussex

Abstract

For a distribution function F on (0,∞), regular variation of its tail is known to imply that F is subexponential. Let be merely of dominated variation. This note shows that F need not be subexponential, and investigates which of the known necessary conditions for subexponentiality become sufficient when insisted upon for such an F.

Type
Short Communications
Copyright
Copyright © Applied Probability Trust 1978 

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References

Pakes, A. G. (1975) On the tails of waiting-time distributions. J. Appl. Prob. 12, 555564.CrossRefGoogle Scholar
Matuszewska, W. (1962) Regularly increasing functions in connection with the theory of L*ϕ-spaces. Studia Math. 21, 317344.CrossRefGoogle Scholar
Seneta, E. (1976) Regularly Varying Functions. Lecture Notes in Mathematics 508, Springer-Verlag, Berlin.Google Scholar
Teugels, J. L. (1975) The class of subexponential distributions. Ann. Prob. 3, 10001011.CrossRefGoogle Scholar
Veraverbeke, N. (1977) Asymptotic behaviour of Wiener–Hopf factors of a random walk. Stoch. Proc. Appl. 5, 2737.CrossRefGoogle Scholar