Ratio of Generalized Hill’s estimator and its asymptotic normality theory

Allerton Press - Tập 18 - Trang 117-133 - 2009
A. Diop1, G. S. Lô2
1Laboratoire LERSTAD, Université Gaston Berger, Saint-Louis, Sénégal
2Laboratoire LERSTAD, Université Gaston Berger, Saint-Louis, Sénégal, LSTA, Université Pierre et Marie Curie, Paris, France

Tóm tắt

We present a statistical process depending on a continuous time parameter τ whose each margin provides a Generalized Hill’s estimator. In this paper, the asymptotic normality of the finite-dimensional distributions of this family are completely characterized for τ > 1/2 when the underlying distribution function lies on the maximum domain of attraction. The ratio of two different margins of the statistical process characterizes entirely the whole domain of attraction. Its asymptotic normality is also studied. The results permit in general to build a new family of estimators for the extreme value index whose asymptotic properties can be easily derived. For example, we give a new estimate of the Weibull extreme value index and we study its consistency and its asymptotic normality.

Tài liệu tham khảo

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