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A wavelet-based multivariate multiscale approach for forecasting

Authors 
Ano de Divulgação 
2016
Código JEL 
C22 - Time-Series Models
C40 - General
C53 - Forecasting and Other Model Applications
Resumo 
In an increasingly data rich environment, factor models have become the workhorse approach for modelling and forecasting purposes. However, factors are non-observable and have to be estimated. In particular, the space spanned by the unknown factors is typically estimated via principal components. Herein, it is proposed a novel procedure to estimate the factor space resorting to a wavelet based multiscale principal component analysis. Through a Monte Carlo simulation study, it is shown that such an approach allows to improve both factor model estimation and forecasting performance. In the empirical application, one illustrates its usefulness for forecasting GDP growth and inflation in the United States.
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