Publikation: Working paper › Forskning
Tail asymptotics for dependent subexponential differences. / Albrecher, H; Asmussen, Søren; Kortschak, D.
Thiele Centre, Institut for Matematiske Fag, Aarhus Universitet, 2011.Publikation: Working paper › Forskning
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TY - UNPB
T1 - Tail asymptotics for dependent subexponential differences
AU - Albrecher, H
AU - Asmussen, Søren
AU - Kortschak, D.
PY - 2011/9/8
Y1 - 2011/9/8
N2 - We study the asymptotic behavior of P(X − Y > u) as u → ∞, where X is subexponential and X, Y are positive random variables that may be dependent. We give criteria under which the subtraction of Y does not change the tail behavior of X. It is also studied under which conditions the comonotonic copula represents the worst-case scenario for the asymptotic behavior in the sense of minimizing the tail of X − Y and an explicit construction of the worst-case copula is provided in the other cases.
AB - We study the asymptotic behavior of P(X − Y > u) as u → ∞, where X is subexponential and X, Y are positive random variables that may be dependent. We give criteria under which the subtraction of Y does not change the tail behavior of X. It is also studied under which conditions the comonotonic copula represents the worst-case scenario for the asymptotic behavior in the sense of minimizing the tail of X − Y and an explicit construction of the worst-case copula is provided in the other cases.
M3 - Working paper
BT - Tail asymptotics for dependent subexponential differences
PB - Thiele Centre, Institut for Matematiske Fag, Aarhus Universitet
ER -