Results 21 to 30 of about 4,162 (190)

Types of dependence and time-dependent association between two lifetimes in single parameter copula models [PDF]

open access: yes, 2006
Most publications on modeling insurance contracts on two lives, assuming dependence of the two lifetimes involved, focus on the time of inception of the contract.
Spreeuw, J.
core   +1 more source

Characterizations of Archimedean n-copulas [PDF]

open access: yesKybernetika, 2015
Summary: We present three characterizations of \(n\)-dimensional Archimedean copulas: algebraic, differential and diagonal. The first is due to Jouini and Clemen. We formulate it in a more general form, in terms of an \(n\)-variable operation derived from a binary operation.
openaire   +2 more sources

Spatial Tail Dependence and Survival Stability in a Class of Archimedean Copulas

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2016
This paper investigates properties of extensions of tail dependence of Archimax copulas to high dimensional analysis in a spatialized framework. Specifically, we propose a characterization of bivariate margins of spatial Archimax processes while spatial ...
Diakarya Barro   +2 more
doaj   +1 more source

Intermediate Tail Dependence: A Review and Some New Results [PDF]

open access: yes, 2012
The concept of intermediate tail dependence is useful if one wants to quantify the degree of positive dependence in the tails when there is no strong evidence of presence of the usual tail dependence. We first review existing studies on intermediate tail
A. Charpentier   +35 more
core   +1 more source

Simulation algorithms for hierarchical Archimedean copulas beyond the completely monotone case

open access: yesDependence Modeling, 2019
Two simulation algorithms for hierarchical Archimedean copulas in the case when intra-group generators are not necessarily completely monotone are presented. Both generalize existing algorithms for the completely monotone case.
Mai Jan-Frederik
doaj   +1 more source

Evolution of coupled lives' dependency across generations and pricing impact [PDF]

open access: yes, 2012
This paper studies the dependence between coupled lives - both within and across generations - and its effects on prices of reversionary annuities in the presence of longevity risk.
Luciano, E., Spreeuw, J., Vigna, E.
core   +1 more source

Tails of multivariate Archimedean copulas

open access: yesJournal of Multivariate Analysis, 2009
A complete and user-friendly directory of tails of Archimedean copulas is presented which can be used in the selection and construction of appropriate models with desired properties. The results are synthesized in the form of a decision tree: Given the values of some readily computable characteristics of the Archimedean generator, the upper and lower ...
Arthur Charpentier, Johan Segers
openaire   +4 more sources

A multivariate version of Williamson’s theorem, ℓ1-symmetric survival functions, and generalized Archimedean copulas

open access: yesDependence Modeling, 2018
Williamson’s integral representation of n-monotone functions on the half-line is generalized to several dimensions. This leads to a characterization of multivariate survival functions with multiply ℓ1- symmetry.
Ressel Paul
doaj   +1 more source

Local Dependence for Bivariate Weibull Distributions Created by Archimedean Copula

open access: yesمجلة بغداد للعلوم, 2021
In multivariate survival analysis, estimating the multivariate distribution functions and then measuring the association between survival times are of great interest.
Swar O. Ahmed   +2 more
doaj   +1 more source

An Archimedean Copulas-Based Approach for m-Consecutive-k-Out-of-n: F Systems with Exchangeable Components

open access: yesStats, 2023
It is evident that several real-life applications, such as telecommunication systems, call for the establishment of consecutive-type networks. Moreover, some of them require more complex connectors than the ones that exist already in the literature ...
Ioannis S. Triantafyllou
doaj   +1 more source

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