Showing 1 - 10 of 2,445
Persistent link: https://www.econbiz.de/10003973316
We introduce a statistical test for comparing the predictive accuracy of competing copula specifications in multivariate density forecasts, based on the Kullback-Leibler Information Criterion (KLIC). The test is valid under general conditions: in particular it allows for parameter estimation...
Persistent link: https://www.econbiz.de/10011377261
We propose a new class of observation-driven time-varying parameter models for dynamic volatilities and correlations to handle time series from heavy-tailed distributions. The model adopts generalized autoregressive score dynamics to obtain a time-varying covariance matrix of the multivariate...
Persistent link: https://www.econbiz.de/10011380135
Persistent link: https://www.econbiz.de/10009720703
Persistent link: https://www.econbiz.de/10009756306
the stable tail dependence function, which is standard in extreme value theory for describing multivariate tail dependence …
Persistent link: https://www.econbiz.de/10010246746
We consider a new copula method for mixed marginals of discrete and continuous random variables. Unlike the Bayesian methods in the literature, we use maximum likelihood estimation based on closed-form copula functions. We show with a simulation that our methodology performs similar to the...
Persistent link: https://www.econbiz.de/10010464789
Persistent link: https://www.econbiz.de/10010494787
Persistent link: https://www.econbiz.de/10008655194
In this paper, we extend the concept of mutual exclusivity proposed by Dhaene and Denuit (1999) to its tail counterpart and baptise this new dependency structure as tail mutual exclusivity. Probability levels are first specified for each component of the random vector. Under this dependency...
Persistent link: https://www.econbiz.de/10010477089