A simple estimator for the finite right endpoint of a distribution function in the Gumbel maxdomain of attraction is proposed. Large sample properties such as consistency and the asymptotic distribution are derived. A simulation study is also presented.
IntroductionLet X n,n ≥ X n−1,n ≥ . . . ≥ X 1,n be the order statistics from the sample X 1 , X 2 , . . . , X n of i.i.d. random variables with common (unknown) distribution function F . Let x F denote the right endpoint of F . We shall assume that the distribution function F has a finite right endpoint, i.e.x F := sup{x : F (x) < 1} ∈ R.The fundamental result for extreme value theory is due in vary degrees of generality to Fisher and Tippett (1928), Gnedenko (1943), de Haan (1970 and Balkema and de Haan (1974). The extreme value theorem (or extremal types theorem) surprisingly restricts the class of all possible limiting distribution functions to only three different types, while the induced domains of attraction embrace a great variety of distribution functions. This is particularly true in the case of the Gumbel domain of attraction. In other words, if there exist constants a n > 0, b n ∈ R such that