A New Class of Reduced-Bias Generalized Hill Estimators

Lígia Henriques-Rodrigues, Frederico Caeiro, M. Ivette Gomes

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Abstract

The estimation of the extreme value index (EVI) is a crucial task in the field of statistics of extremes, as it provides valuable insights into the tail behavior of a distribution. For models with a Pareto-type tail, the Hill estimator is a popular choice. However, this estimator is susceptible to bias, which can lead to inaccurate estimations of the EVI, impacting the reliability of risk assessments and decision-making processes. This paper introduces a novel reduced-bias generalized Hill estimator, which aims to enhance the accuracy of EVI estimation by mitigating the bias.

Original languageEnglish
Article number2866
JournalMathematics
Volume12
Issue number18
DOIs
Publication statusPublished - Sept 2024

Keywords

  • asymptotic properties
  • extreme value index
  • generalized means
  • Monte Carlo simulation
  • reduced-bias estimators
  • statistics of extremes

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