Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/183484
Authors: 
Costantini, Mauro
Kunst, Robert M.
Year of Publication: 
2018
Series/Report no.: 
IHS Economics Series 341
Abstract: 
Abstract Comparative ex-ante prediction experiments over expanding subsamples are a popular tool for the task of selecting the best forecasting model class in finite samples of practical relevance. Flanking such a horse race by predictive-accuracy tests, such as the test by Diebold and Mariano (1995), tends to increase support for the simpler structure. We are concerned with the question whether such simplicity boosting actually benefits predictive accuracy in finite samples. We consider two variants of the DM test, one with naive normal critical values and one with bootstrapped critical values, the predictive-ability test by Giacomini and White (2006), which continues to be valid in nested problems, the F test by Clark and McCracken (2001), and also model selection via the AIC as a benchmark strategy. Our Monte Carlo simulations focus on basic univariate time-series specifications, such as linear (ARMA) and nonlinear (SETAR) generating processes.
Subjects: 
forecasting
time series
predictive accuracy
model selection
JEL: 
C22
C52
C53
Document Type: 
Working Paper
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