Abstract
Members of the well-known family of bivariate Galambos copulas can be expressed in a closed form in terms of the univariate Fréchet distribution. This formula extends to any dimension and can be used to define a whole new class of tractable multivariate copulas that are generated by suitable univariate distributions. This paper gives necessary and sufficient conditions on the underlying univariate distribution which ensure that the resulting copula exists. It is also shown that these new copulas are in fact dependence structures of certain max-id distributions with 1-norm symmetric exponent measure. The basic dependence properties of this new class of multivariate exchangeable copulas is investigated, and an efficient algorithm is provided for generating observations from distributions in this class.
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 3751-3790 |
| Seitenumfang | 40 |
| Fachzeitschrift | Bernoulli |
| Jahrgang | 24 |
| Ausgabenummer | 4B |
| DOIs | |
| Publikationsstatus | Veröffentlicht - Nov. 2018 |
| Extern publiziert | Ja |
Bibliographische Notiz
Funding Information:Funding in partial support of this work was provided by the Canada Research Chairs Program, the Natural Sciences and Engineering Research Council (RGPIN/39476–2011, RGPIN/06801– 2015), the Canadian Statistical Sciences Institute, and the Fonds de recherche du Québec – Nature et technologies (2015–PR–183236).
Funding Information:
support of this work was provided by the Canada Research Chairs Program, the Natural Sciences and Engineering Research Council (RGPIN/39476–2011, RGPIN/06801–2015), the Canadian Statistical Sciences Institute, and the Fonds de recherche du Québec – Nature et technologies (2015–PR–183236).
Publisher Copyright:
© 2018 ISI/BS.