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Journal of Statistical Theory and Practice

, Volume 9, Issue 3, pp 571–599 | Cite as

Estimation of a Scale Second-Order Parameter Related to the PORT Methodology

  • Lígia Henriques-Rodrigues
  • M. Ivette GomesEmail author
  • B. G. Manjunath
Article
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Abstract

For heavy right tails and under a semiparametric framework, we introduce a class of location-invariant estimators of a scale second-order parameter and study its asymptotic nondegenerate behavior. This class is based on the PORT methodology, with PORT standing for peaks over random thresholds. The consistency and asymptotic normality of the new class of estimators is achieved under a third-order condition on the right tail of the underlying model F for intermediate and large ranks, respectively. An illustration of the finite sample behavior of the estimators is provided through a Monte Carlo simulation study.

Keywords

Location/scale invariant estimation PORT methodology Semiparametric estimation Scale second-order parameters Statistics of extremes 

AMS 2000 Subject Classification

Primary 62G32, 62E20 Secondary 65C05 
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Copyright information

© Grace Scientific Publishing 2015

Authors and Affiliations

  • Lígia Henriques-Rodrigues
    • 1
    • 2
  • M. Ivette Gomes
    • 1
    Email author
  • B. G. Manjunath
    • 1
  1. 1.Centro de Estatística e Aplicações and Departamento de Estatística e Investigação Operacional, Faculdade de CiênciasUniversidade de LisboaLisboaPortugal
  2. 2.Instituto Politécnico de TomarTomarPortugal

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