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fundamental characteristic. We compare our empirical findings with a single Gaussian copula, a correlation-weighted average of … Gaussian copulas, the K-copula which directly addresses the nonstationarity of dependencies as a model parameter, and the … skewed Student's t-copula. The K-copula covers the empirical dependence structure on the local scale most adequately, whereas …
Persistent link: https://www.econbiz.de/10012842121
promising class of models are the hierarchical Archimedean copulae (HAC) that allow for non-exchangeable and non … for stock indices the copula parameter changes dynam- ically but the hierarchical structure is constant over time …. Interestingly in our exchange rate example both structure and parameters vary dynamically. -- copula ; multivariate distribution …
Persistent link: https://www.econbiz.de/10003953027
error terms. The inefficiency and noise terms being dependent, a copula function which reflects the dependence between them …
Persistent link: https://www.econbiz.de/10012816131
, conditional quantiles are specified via hierarchical Archimedean copula. The parameters and structure of this copula are …
Persistent link: https://www.econbiz.de/10011309638
We introduce a copula-based dynamic model for multivariate processes of (non-negative) high-frequency trading variables … multiplicative error model we map the resulting residuals into a Gaussian domain using a Gaussian copula. Based on high … proposed copula-based transformation is supported by the data and allows capturing (multivariate) dynamics in higher order …
Persistent link: https://www.econbiz.de/10010201171
estimation of these two top distributions. We leverage the bivariate parametric/non-parametric copula to extrapolate both income … and wealth distributions from German PHF (Panel on Household Finance) data. The copula modelling potentially reduces the …. The copula estimate can help us to perform out-of-sample prediction on the very top of the tail distribution from one …
Persistent link: https://www.econbiz.de/10012438173
smoothed transition regression (LSTR) model where possible threshold endogeneity is addressed based on copula theory. We also …
Persistent link: https://www.econbiz.de/10012135950
estimation of these two top distributions by using the best data available for Germany. We leverage the bivariate copula to … model. The copula modelling grants the separability in choosing the estimation domain as well as the parametric … model fit with external validation. The copula estimate can help us to perform out-of-sample prediction on the very top of …
Persistent link: https://www.econbiz.de/10012424292
This paper studies the dependence between coupled lives, i.e., the spouses' dependence, across different generations, and its effects on prices of reversionary annuities in the presence of longevity risk. Longevity risk is represented via a stochastic mortality intensity. We find that a...
Persistent link: https://www.econbiz.de/10011507502
directions are linked through a 2m-dimensional copula. The approach is detailed in the case of a bivariate decomposition. We …
Persistent link: https://www.econbiz.de/10011313230