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Several copula goodness-of-fit approaches are examined, three of which are proposed in this paper. Results are …
Persistent link: https://www.econbiz.de/10008603200
. We show that by modeling the conditional dependence structure using copulae, we can detect changes in the dependence …
Persistent link: https://www.econbiz.de/10008603202
is the copula philosophy, where the dependency structure is treated entirely separately from marginals. In financial … applications one often needs to work with combinations of marginals of various distributional types, and the copula philosophy is … very attractive as it copes well with heterogeneous marginals. However, with some notable exceptions, the copula approach …
Persistent link: https://www.econbiz.de/10008603209
The authors provide bibliometric evidence to illustrate the development of copula theory in mathematics, statistics …
Persistent link: https://www.econbiz.de/10008603214
We introduce a general approach to nonlinear quantile regression modelling based on the copula function that defines … the dependence function (or copula). We then deduce the form of the (invariably nonlinear) conditional quantile … relationship implied by the copula. This can be achieved with arbitrary distributions assumed for the marginals. Some properties of …
Persistent link: https://www.econbiz.de/10008603217
is used for innovations. As the association between the underlying assets may vary over time, the dynamic copula approach …-GH model with time-varying copula differ substantially from the prices implied by the GARCH-Gaussian dynamic copula model …
Persistent link: https://www.econbiz.de/10008603219
We derive in closed form distribution-free bounds and optimal hedging strategies for spread options. Upper bounds are obtained when the spread option's joint distribution is constrained by the prices of traded options with all available strikes of a given maturity. The difference between the...
Persistent link: https://www.econbiz.de/10005268730