Biases of Correlograms and of AR Representations of Stationary Series
10 Pages Posted: 13 Jan 2012 Last revised: 27 Feb 2012
Date Written: March 28, 2011
We derive the relation between the biases of correlograms and of estimates of auto-regressive AR(k) representations of stationary series, and we illustrate it with a simple AR example. The new relation allows for k to vary with the sample size, which is a representation that can be used for most stationary processes. As a result, the biases of the estimators of such processes can now be quantified explicitly and in a unified way.
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