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Forecasting with factor-augmented regression: A frequentist model averaging approach

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  • Cheng, Xu
  • Hansen, Bruce E.
Abstract
This paper considers forecast combination with factor-augmented regression. In this framework, a large number of forecasting models are available, varying by the choice of factors and the number of lags. We investigate forecast combination across models using weights that minimize the Mallows and the leave-h-out cross validation criteria. The unobserved factor regressors are estimated by principle components of a large panel with N predictors over T periods. With these generated regressors, we show that the Mallows and leave-h-out cross validation criteria are asymptotically unbiased estimators of the one-step-ahead and multi-step-ahead mean squared forecast errors, respectively, provided that N,T→∞. (However, the paper does not establish any optimality properties for the methods.) In contrast to well-known results in the literature, this result suggests that the generated-regressor issue can be ignored for forecast combination, without restrictions on the relation between N and T.

Suggested Citation

  • Cheng, Xu & Hansen, Bruce E., 2015. "Forecasting with factor-augmented regression: A frequentist model averaging approach," Journal of Econometrics, Elsevier, vol. 186(2), pages 280-293.
    • Handle: RePEc:eee:econom:v:186:y:2015:i:2:p:280-293
    DOI: 10.1016/j.jeconom.2015.02.010
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    More about this item

    Keywords

    Cross-validation; Factor models; Forecast combination; Generated regressors; Mallows;
    All these keywords.

    JEL classification:

    • C52 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Model Evaluation, Validation, and Selection
    • C53 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Forecasting and Prediction Models; Simulation Methods

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