Heuristic Tools for the Estimation of The Extremal Index

Clustering of exceedances of a critical level is a phenomenon that concerns risk managers in many areas. The extremal index θ measures the propensity of the large observations in a dataset to cluster. Thus the estimation of θ is an important issue recurrently addressed in literature. Besides a decl...

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Bibliographic Details
Main Author: Marta Ferreira
Format: Article
Language:English
Published: Instituto Nacional de Estatística | Statistics Portugal 2018-02-01
Series:Revstat Statistical Journal
Subjects:
Online Access:https://revstat.ine.pt/index.php/REVSTAT/article/view/235