Estimation of the autoregressive order in the presence of measurement errors

Tai Leung, Terence CHONG, Venus LIEW, Yuanxiu ZHANG, Chi Leung, Adam WONG

Research output: Journal PublicationsJournal Article (refereed)peer-review

1 Citation (Scopus)


Most of the existing autoregressive models presume that the observations are perfectly measured. In empirical studies, the variable of interest is unavoidably measured with various kinds of errors. Thus, misleading conclusions may be yielded due to the inconsistency of the parameter estimates caused by the measurement errors. Thus far, no theoretical result on the direction of bias of the lag order estimate is available in the literature. In this note, we will discuss the estimation an AR model in the presence of measurement errors. It is shown that the inclusion of measurement errors will drastically increase the complexity of the problem. We show that the lag lengths selected by the AIC and BIC are increasing with the sample size at a logarithmic rate.
Original languageEnglish
Pages (from-to)1-10
Number of pages10
JournalEconomics Bulletin
Issue number12
Publication statusPublished - 1 May 2006
Externally publishedYes


  • Akaike Information Criterion
  • Autoregressive Process
  • Bayesian Information Criterion
  • Measurement Error


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