Computational aspects of maximum likelihood estimation of autoregressive fractionally integrated moving average models

  • Authors:
  • Jurgen A. Doornik;Marius Ooms

  • Affiliations:
  • Nuffield College, University of Oxford, OX1 1NF Oxford, UK;Department of Econometrics and Operations Research, Vrije Universiteit Amsterdam en Tinbergen Institute, The Netherlands

  • Venue:
  • Computational Statistics & Data Analysis - Special issue: Computational econometrics
  • Year:
  • 2003

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Abstract

Computational aspects of likelihood-based estimation of univariate ARFIMA(p,d,q) models are addressed. Particular issues are the numerically stable evaluation of the autocovariances and efficient handling of the variance matrix which has dimension equal to the sample size. It is shown how efficient computation and simulation are feasible, even for large samples. Implementation of analytical bias corrections in ARFIMA regression models is also discussed.