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We present a general view of patchwork constructions of copulas that encompasses previous approaches based on similar ideas (ordinal sums, gluing methods, piecing-together, etc.). Practical applications of the new methodology are connected with the determination of copulas having specified...
Persistent link: https://www.econbiz.de/10011046612
We show that copulae and kernel estimation can be mixed to estimate the risk of an economic loss. We analyze the … properties of the Sarmanov copula. We find that the maximum pseudo-likelihood estimation of the dependence parameter associated … with the copula with double transformed kernel estimation to estimate marginal cumulative distribution functions is a …
Persistent link: https://www.econbiz.de/10011046618
The Gaussian copula is by far the most popular copula for modeling the association in finance and insurance risk … problems. However, one major drawback of Gaussian copula is that it intrinsically lacks the flexibility of modeling the tail … dependence, which real life data often exhibit. In this paper, we present the modified Gaussian copula, a pseudo-copula model …
Persistent link: https://www.econbiz.de/10010681885
in the next consecutive years. Further, we employ the copula method to capture the inter-age mortality dependence …
Persistent link: https://www.econbiz.de/10011263849
The inverse of the (additive) generator of an Archimedean copula is a strictly decreasing and convex function, while … an inverse generator of an Archimedean copula from a utility function. If we derive the inverse of the generator from the …–Pratt coefficient of absolute risk aversion) and the strength of dependence featured by the corresponding Archimedean copula. Some new …
Persistent link: https://www.econbiz.de/10011116634
the random vector is formulated by means of an absolutely continuous copula, allowing for a variety of different … property into marginal and dependence structure contributions typical for copula approaches. Along the same lines we obtain the …
Persistent link: https://www.econbiz.de/10011116644
copula. We study the Laplace transform of the discounted penalty function and we give the explicit expression of it for the …
Persistent link: https://www.econbiz.de/10011116650
Let X and Y be two random vectors in Rn sharing the same dependence structure, that is, with a common copula. As many …
Persistent link: https://www.econbiz.de/10011046581
Quadrant dependence is a useful dependence notion of two random variables, widely applied in reliability, insurance and actuarial sciences. The interest in this dependence structure ranges from modeling it, throughout measuring its strength and investigations on how increasing the dependence...
Persistent link: https://www.econbiz.de/10011046614
properties enable us to show that a continuous random vector is PDS (PDUO) if and only of its copula is PDS (PDUO). In addition …
Persistent link: https://www.econbiz.de/10011046627