ArticleOriginal scientific text

Title

Extremal (in)dependence of a maximum autoregressive process

Authors 1

Affiliations

  1. Center of Mathematics of Minho University, Campus de Gualtar, 4710 - 057 Braga, Portugal

Abstract

Maximum autoregressive processes like MARMA (Davis and Resnick, [5] 1989) or power MARMA (Ferreira and Canto e Castro, [12] 2008) have singular joint distributions, an unrealistic feature in most applications. To overcome this pitfall, absolute continuous versions were presented in Alpuim and Athayde [2] (1990) and Ferreira and Canto e Castro [14] (2010b), respectively. We consider an extended version of absolute continuous maximum autoregressive processes that accommodates both asymptotic tail dependence and independence. A full characterization of the bivariate lag-m tail dependence is presented. This will be useful in an adjustment procedure of the model to real data. An illustration with financial data is presented at the end.

Keywords

extreme value theory, autoregressive processes, tail dependence, asymptotic tail independence

Bibliography

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Pages:
47-64
Main language of publication
English
Received
2013-03-04
Accepted
2013-09-16
Published
2013
Exact and natural sciences