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Efficient forecasting in nearly non-stationary processes

✍ Scribed by Ismael Sánchez

Publisher
John Wiley and Sons
Year
2001
Tongue
English
Weight
305 KB
Volume
21
Category
Article
ISSN
0277-6693

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✦ Synopsis

Abstract

This paper proposes a procedure to make efficient predictions in a nearly non‐stationary process. The method is based on the adaptation of the theory of optimal combination of forecasts to nearly non‐stationary processes. The proposed combination method is simple to apply and has a better performance than classical combination procedures. It also has better average performance than a differenced predictor, a fractional differenced predictor, or an optimal unit‐root pretest predictor. In the case of a process that has a zero mean, only the non‐differenced predictor is slightly better than the proposed combination method. In the general case of a non‐zero mean, the proposed combination method has a better overall performance than all its competitors. Copyright © 2002 John Wiley & Sons, Ltd.

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