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dynamic copula results show that the time-varying t copula achieves the best performance, which means the symmetry dynamic t … dependence structure between the U.S. and Chinese stock market. The estimated static copula results for the entire period show … that the SJC copula performs best, indicating asymmetric characteristics of the tail dependence structure. The estimated …
Persistent link: https://www.econbiz.de/10010744289
consistent framework. Credit spreads are modelled by geometric Brownian motions with a dependence structure powered by a t-copula …
Persistent link: https://www.econbiz.de/10010745286
We propose a new goodness-of-fit test for copulas, based on empirical copula processes and nonparametric bootstrap … counterparts. The standard Kolmogorov-Smirnov type test for copulas that takes the supremum of the empirical copula process indexed … by orthants is extended by test statistics based on the supremum of the empirical copula process indexed by families of …
Persistent link: https://www.econbiz.de/10010747006
distributions, respectively. Several copulas are tested to determine the best data fitted copula. Droughts, defined using the …. The copula fitting results for drought duration and severity are quite satisfactory. The bivariate drought analyses …, including the joint probabilities and bivariate return periods, based on the derived copula-based joint distribution are also …
Persistent link: https://www.econbiz.de/10010794071
This paper presents a novel time-adaptive quantile-copula estimator for kernel density forecast and a discussion of how …
Persistent link: https://www.econbiz.de/10010804549
Renewable distributed generation introduced as an environmental friendly alternative energy supply while it provided the power system with ever-growing technical benefits such as loss reduction and feeder voltage improvement. The evaluation of the effects of small residential photovoltaic and...
Persistent link: https://www.econbiz.de/10010804927
We study two-dimensional self-similar Ito diffusions (X,Y) whose margins are Wiener processes. We characterize the copulas of the random pairs (Xt,Yt) for a given t.
Persistent link: https://www.econbiz.de/10010678738
with Copula. To begin with the Standard Stochastic Frontier Model (SFA), it is generally formulated hypothesis in order to … disturbances) of the composite error W=V-U . In addition to applying the copula approach to statistical model, the Standard … Frontier with copula are less restrictive than the Standard Stochastic frontier and also more attractive to statistical grounds …
Persistent link: https://www.econbiz.de/10010765504
will certainly be drown if a more classes of Copula functions can be used. …
Persistent link: https://www.econbiz.de/10010765519
The joint distribution of order statistics is characterized without reference to a parent distribution. To this end, the possible univariate margins of such a distribution are first determined. The class of possible copulas K is then characterized under the assumption of continuous margins...
Persistent link: https://www.econbiz.de/10010776641