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A SIMPLE FRACTIONALLY INTEGRATED MODEL WITH A TIME-VARYING LONG MEMORY PARAMETER Dt

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Author Info

  • Mohamed Boutahar

    (GREQAM - Groupement de Recherche en Économie Quantitative d'Aix-Marseille - Université de la Méditerranée - Aix-Marseille II - Université Paul Cézanne - Aix-Marseille III - Ecole des Hautes Etudes en Sciences Sociales (EHESS) - CNRS : UMR6579)

  • Gilles Dufrénot

    (GREQAM - Groupement de Recherche en Économie Quantitative d'Aix-Marseille - Université de la Méditerranée - Aix-Marseille II - Université Paul Cézanne - Aix-Marseille III - Ecole des Hautes Etudes en Sciences Sociales (EHESS) - CNRS : UMR6579)

  • Anne Peguin-Feissolle

    ()
    (GREQAM - Groupement de Recherche en Économie Quantitative d'Aix-Marseille - Université de la Méditerranée - Aix-Marseille II - Université Paul Cézanne - Aix-Marseille III - Ecole des Hautes Etudes en Sciences Sociales (EHESS) - CNRS : UMR6579)

Abstract

This paper generalizes the standard long memory modeling by assuming that the long memory parameter d is stochastic and time varying: we introduce a STAR process on this parameter characterized by a logistic function. We propose an estimation method of this model. Some simulation experiments are conducted. The empirical results suggest that this new model offers an interesting alternative competing framework to describe the persistent dynamics in modelling some financial series.

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File URL: http://halshs.archives-ouvertes.fr/docs/00/27/81/76/PDF/DT2008-10Corrige.pdf
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Bibliographic Info

Paper provided by HAL in its series Working Papers with number halshs-00275254.

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Date of creation: 23 Apr 2008
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Handle: RePEc:hal:wpaper:halshs-00275254

Note: View the original document on HAL open archive server: http://halshs.archives-ouvertes.fr/halshs-00275254/en/
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Web page: http://hal.archives-ouvertes.fr/

Related research

Keywords: Long-memory; Logistic function; STAR;

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Cited by:
  1. Marcel Aloy & Gilles Dufrénot & Charles Lai Tong & Anne Péguin-Feissolle, 2012. "A Smooth Transition Long-Memory Model," AMSE Working Papers 1240, Aix-Marseille School of Economics, Marseille, France, revised Dec 2012.

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