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April 2017 A Lynden-Bell integral estimator for the tail index of right-truncated data with a random threshold
Nawel Haouas,, Abdelhakim Necir, Djamel Meraghni, Brahim Brahimi
Afr. Stat. 12(1): 1159-1170 (April 2017). DOI: 10.16929/as/2017.1159.97

Abstract

By means of a Lynden-Bell integral with deterministic threshold, Worms and Worms [A Lynden-Bell integral estimator for extremes of randomly truncated data. Statist. Probab. Lett. 2016; 109: 106-117] recently introduced an asymptotically normal estimator of the tail index for randomly right-truncated Pareto-type data. In this context, we consider the random threshold case to derive a Hill-type estimator and establish its consistency and asymptotic normality. A simulation study is carried out to evaluate the finite sample behavior of the proposed estimator.

Par l'intégrale de Lynden-Bell avec un seuil déterministe, Worms et Worms [A Lynden-Bell integral estimator for extremes of randomly truncated data. Statist. Probab. Lett. 2016; 109: 106-117] a récemment introduit un estimateur asymptotiquement normal de l'indice de queue pour les données de type Pareto tronquées à droit. Dans ce contexte, nous considérons le cas du seuil aléatoire pour obtenir un estimateur de type Hill et établir sa consistance et sa normalité asymptotique. Une étude de simulation est réalisée pour évaluer le comportement de l'estimateur proposé.

Citation

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Nawel Haouas,. Abdelhakim Necir. Djamel Meraghni. Brahim Brahimi. "A Lynden-Bell integral estimator for the tail index of right-truncated data with a random threshold." Afr. Stat. 12 (1) 1159 - 1170, April 2017. https://doi.org/10.16929/as/2017.1159.97

Information

Received: 2 December 2016; Accepted: 3 March 2017; Published: April 2017
First available in Project Euclid: 22 April 2017

zbMATH: 1366.62101
MathSciNet: MR3638976
Digital Object Identifier: 10.16929/as/2017.1159.97

Subjects:
Primary: 60F17 , 62G30 , 62G32 , 62P05

Keywords: extreme value index , heavy-tails , Lynden-Bell estimator , Random truncation

Rights: Copyright © 2017 The Statistics and Probability African Society

Vol.12 • No. 1 • April 2017
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