Maxima of a triangular array of multivariate Gaussian sequence

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Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Maxima of a triangular array of multivariate Gaussian sequence
Journal
Statistics & Probability Letters
Author(s)
Hashorva  E., Peng  L., Weng  Z.
ISSN
0167-7152 (Print)
Publication state
Published
Issued date
08/2015
Peer-reviewed
Oui
Volume
103
Pages
62-72
Language
english
Abstract
It is known that the normalized maxima of a sequence of independent and identically distributed bivariate normal random vectors with correlation coefficient rho is an element of [-1, 1) is asymptotically independent, which implies that using bivariate normal distribution will seriously underestimate extreme co-movement in practice. By letting rho depend on the sample size and go to one with certain rate, Husler and Reiss (1989) showed that the normalized maxima of Gaussian random vectors can become asymptotically dependent so as to well predict the co-movement observed in the market. In this paper, we extend such a study to a triangular array of a multivariate Gaussian sequence, which further generalizes the results in Hsing et al. (1996) and Hashorva and Weng (2013).
Keywords
Correlation coefficient, Maxima, Stationary Gaussian triangular array
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17/05/2015 17:20
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20/08/2019 17:15
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