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Incorporating lag order selection uncertainty in parameter inference for AR models

Parameter inference on autoregressive models is usually carried out conditionally on a previously selected lag order. In the majority of cases the lag order selection is carried out using information criteria and in particular the Akaike (1973), Schwarz (1978) or Hannan and Quin (1979) criteria. It is well known that the latter two criteria are consistent in lag order selection in the sense of of picking the true order of the system with probability one asymptotically. On the other hand, Akaike's criterion is known to overestimate the lag order in this sense. In this note we discuss the asymptotic distribution, of the parameter estimates without conditioning on the lag order selected.

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Paper provided by National Institute of Economic and Social Research in its series NIESR Discussion Papers with number 175.

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Date of creation: May 2000
Date of revision:
Handle: RePEc:nsr:niesrd:175
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