Markov regression models for time series: A quasi-likelihood approach

S. L. Zeger, B. Qaqish

Research output: Contribution to journalArticle

Abstract

This paper discusses a quasi-likelihood (QL) approach to regression analysis with time series data. We consider a class of Markov models, referred to by Cox (1981, Scandinavian Journal of Statistics 8, 93-115) as 'observation-driven' models in which the conditional means and variances given the past are explicit functions of past outcomes. The class includes autoregressive and Markov chain models for continuous and categorical observations as well as models for counts (e.g., Poisson) and continuous outcomes with constant coefficient of variation (e.g., gamma). We focus on Poisson and gamma data for illustration. Analogous to QL for independent observations, large-sample properties of the regression coefficients depend only on correct specification of the first conditional movement.

Original languageEnglish (US)
Pages (from-to)1019-1031
Number of pages13
JournalBiometrics
Volume44
Issue number4
DOIs
StatePublished - Jan 1 1988

ASJC Scopus subject areas

  • Statistics and Probability
  • Biochemistry, Genetics and Molecular Biology(all)
  • Immunology and Microbiology(all)
  • Agricultural and Biological Sciences(all)
  • Applied Mathematics

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