Results 91 to 100 of about 520,955 (192)

Modeling the Dependency Structure of Stock Index Returns using a Copula Function Approach [PDF]

open access: yes
In the present study we assess the dependency structure between stock indexes by econometrically estimating the empirical copula function and the parameters of various parametric copula functions.
Necula, Ciprian
core  

Factor Tree Copula Models for Item Response Data. [PDF]

open access: yesPsychometrika, 2023
Kadhem SH, Nikoloulopoulos AK.
europepmc   +1 more source

Bi-factor and Second-Order Copula Models for Item Response Data. [PDF]

open access: yesPsychometrika, 2023
Kadhem SH, Nikoloulopoulos AK.
europepmc   +1 more source

Efficient estimation of parameters in marginals in semiparametric multivariate models [PDF]

open access: yes
Recent literature on semiparametric copula models focused on the situation when the marginals are specified nonparametrically and the copula function is given a parametric form.
Artem Prokhorov, Valentyn Panchenko
core  

Singapore COVID-19 data cross-validation by the Gaidai reliability method. [PDF]

open access: yesNpj Viruses, 2023
Gaidai O, Yakimov V, Sun J, van Loon EJ.
europepmc   +1 more source

A Method of Moments Estimator of Tail Dependence in Elliptical Copula Models [PDF]

open access: yes
An elliptical copula model is a distribution function whose copula is that of an elliptical distri- bution. The tail dependence function in such a bivariate model has a parametric representation with two parameters: a tail parameter and a correlation ...
Krajina, A.
core   +1 more source

Analyzing the structural behavior of volatility in the Major European Markets during the Greek crisis [PDF]

open access: yes
In this paper we use a copula-based GARCH model to estimate conditional variances and covariances of the multivariate relationship among English, German and French markets. To that, we used daily prices of FTSE100, DAX and CAC from July 2009 to July 2011,
Paulo Sergio Ceretta   +1 more
core  

Elucidating Analytic Bias Due to Informative Cohort Entry in Cancer Clinico-genomic Datasets. [PDF]

open access: yesCancer Epidemiol Biomarkers Prev, 2023
Kehl KL   +7 more
europepmc   +1 more source

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