Results 101 to 110 of about 927 (219)

Dynamic dependence ordering for Archimedean copulas and distorted copulas

open access: yesKybernetika, 2008
This paper proposes a general framework to compare the strength of the dependence in survival models, as time changes, i.e. given remaining lifetimes , to compare the dependence of given >t, and given >s, where s>t. More precisely, analytical results will be obtained in the case the survival copula of is either Archimedean or a distorted copula.
openaire   +6 more sources

Some applications of the Archimedean copulas in the proof of the almost sure central limit theorem for ordinary maxima

open access: yesOpen Mathematics, 2017
Our goal is to state and prove the almost sure central limit theorem for maxima (Mn) of X1, X2, ..., Xn, n ∈ ℕ, where (Xi) forms a stochastic process of identically distributed r.v.’s of the continuous type, such that, for any fixed n, the family of r.v.’
Dudziński Marcin, Furmańczyk Konrad
doaj   +1 more source

ANALISIS HUBUNGAN PRODUKSI PADI DAN INDIKATOR ENSO DI KABUPATEN TABANAN DENGAN PENDEKATAN COPULA

open access: yesE-Jurnal Matematika, 2016
Dependence relationship between two or more variables is an issue that is often studied in the science of probability and statistics. Pearson correlation is often the easiest option to measure dependencies between variables.
LUH GEDE UDAYANI   +2 more
doaj   +1 more source

Parametric estimation of conditional Archimedean copula generators for censored data

open access: yes
A novel framework is introduced for estimating Archimedean copula generators in a conditional setting by embedding endogenous variables directly within the generator function. Unlike standard copula constructions that rely on a fixed dependence structure
Pigeon, Mathieu   +2 more
core   +3 more sources

Dependence and Order in Families of Archimedean Copulas

open access: yesJournal of Multivariate Analysis, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

COMPARISON OF COPULA FAMILY (GAUSSIAN, ARCHIMEDEAN, AND REGRESSION) IN A CASE STUDY OF COMPOSITE STOCK PRICE INDEX ON INDONESIA STOCK EXCHANGE

open access: yesBarekeng
Stocks are one of the most popular financial market instruments. On the other hand, stocks are an investment instrument that is widely chosen by investors because stocks are able to provide attractive profit levels.
Darwis Darwis   +2 more
doaj   +1 more source

Comparison of Archimedean copula and mean variance method in estimating VaR an application to different stock portfolios

open access: yes, 2011
Value-at-Risk (VaR) is one of the most important tools used in modern financial risk management. The development of VaR estimation techniques is vibrant in recent decades.
Fan, Helan, Tian, Cheng, Lin, Yiqing
core  

Archimedean copula in the computation of value-at-risk : an application to Singapore stock market.

open access: yes, 2010
The Value-at-Risk (VaR) is of central importance in modern financial risk management. Of the various methods that exist to compute the VaR, the most popular are historical simulation, the variance-covariance method.
Tan, Wei Qin.   +3 more
core  

Bayesian Nonparametric Mixtures of Archimedean Copulas

open access: yesJournal of Agricultural, Biological and Environmental Statistics
Copula-based dependence modeling often relies on parametric formulations. This is mathematically convenient, but can be statistically inefficient when the parametric families are not suitable for the data and model in focus. A Bayesian nonparametric mixture of Archimedean copulas is introduced to increase the flexibility of copula-based dependence ...
Pan, Ruyi   +2 more
openaire   +2 more sources

Reliability analysis of parallel systems with dependent components and Archimedean copulas

open access: yesJournal of Inequalities and Applications
In this paper, preservation properties of reversed hazard rate order and a relative overall reversed hazard rate order under the structure of a parallel system with dependent components having lifetimes coupled by an Archimedean copula are established ...
Mashael A. Alshehri
doaj   +1 more source

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