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Journal Articles Bernoulli Year : 2021

The coupling method in extreme value theory


A coupling method is developed for univariate extreme value theory , providing an alternative to the use of the tail empirical/quantile processes. Emphasizing the Peak-over-Threshold approach that approximates the distribution above high threshold by the Generalized Pareto distribution, we compare the empirical distribution of exceedances and the empirical distribution associated to the limit Generalized Pareto model and provide sharp bounds for their Wasser-stein distance in the second order Wasserstein space. As an application , we recover standard results on the asymptotic behavior of the Hill estimator, the Weissman extreme quantile estimator or the probability weighted moment estimators, shedding some new light on the theory.
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hal-02396457 , version 1 (06-12-2019)



Benjamin Bobbia, Clément Dombry, Davit Varron. The coupling method in extreme value theory. Bernoulli, inPress. ⟨hal-02396457⟩
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