Showing 1 - 10 of 14
dependence structures. These limitations aggravate with increasing dimension. We study a hierarchical risk aggregation method … step in the hierarchy. Copulas and margins of arbitrary kind can be combined. We give an algorithm for numerical … approximation which introduces dependence between originally independent marginal samples through reordering. …
Persistent link: https://www.econbiz.de/10010576722
Measuring dynamic dependence between international financial markets has recently attracted great interest in financial … novel approach for measuring dependence dynamics. We include a hidden Markov chain (MC) in the equation describing … dependence dynamics, allowing the unobserved time-varying dependence parameter to vary according to both a restricted ARMA …
Persistent link: https://www.econbiz.de/10010576731
This paper illustrates the modeling of dependence structures of non-life insurance risks using the Bernstein copula. We … conduct a goodness-of-fit analysis and compare the Bernstein copula with other widely used copulas. Then, we illustrate the … Bernstein copula, including its flexibility in mapping inhomogeneous dependence structures and its easy use in a simulation …
Persistent link: https://www.econbiz.de/10010572713
claims and exchangeable dependent claims in each of the portfolios. Copulas are used to model the dependence situations …
Persistent link: https://www.econbiz.de/10010572727
We investigate an insurance risk model that consists of two reserves which receive income at fixed rates. Claims are being requested at random epochs from each reserve and the interclaim times are generally distributed. The two reserves are coupled in the sense that at a claim arrival epoch,...
Persistent link: https://www.econbiz.de/10011263839
large loss in the portfolio or, in the case of a portfolio with a positive dependence structure, to an unusually large loss … is considered alone. We also study, given two random vectors with a fixed dependence structure, the circumstances under …
Persistent link: https://www.econbiz.de/10011263848
–Pratt coefficient of absolute risk aversion) and the strength of dependence featured by the corresponding Archimedean copula. Some new … copula families are derived, and their properties are discussed. A numerical example about modeling dependence of coupled …
Persistent link: https://www.econbiz.de/10011116634
random pair (X,Y) with dependent components. When the product XY is heavy tailed, under a mild restriction on the dependence …
Persistent link: https://www.econbiz.de/10011116639
dependence structures between the summands. The obtained expression for the distribution of the sum features a separation … 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
In this paper, we introduce a multivariate aggregate loss model, where multiple categories of losses are considered. The model assumes that different types of claims arrive according to a Marked Markovian arrival process (MMAP) introduced by He and Neuts (1998) in the queuing literature. This...
Persistent link: https://www.econbiz.de/10011046565