Improved Breitung and Roling estimator for mixed-frequency models with application to forecasting inflation rates

Talha Omer (), Kristofer Månsson (), Pär Sjölander () and B. M. Golam Kibria ()
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Talha Omer: Jönköping University
Kristofer Månsson: Jönköping University
Pär Sjölander: Jönköping University
B. M. Golam Kibria: Florida International University

Statistical Papers, 2024, vol. 65, issue 5, No 26, 3303-3325

Abstract: Abstract Instead of applying the commonly used parametric Almon or Beta lag distribution of MIDAS, Breitung and Roling (J Forecast 34:588–603, 2015) suggested a nonparametric smoothed least-squares shrinkage estimator (henceforth $${SLS}_{1}$$ SLS 1 ) for estimating mixed-frequency models. This $${SLS}_{1}$$ SLS 1 approach ensures a flexible smooth trending lag distribution. However, even if the biasing parameter in $${SLS}_{1}$$ SLS 1 solves the overparameterization problem, the cost is a decreased goodness-of-fit. Therefore, we suggest a modification of this shrinkage regression into a two-parameter smoothed least-squares estimator ( $${SLS}_{2}$$ SLS 2 ). This estimator solves the overparameterization problem, and it has superior properties since it ensures that the orthogonality assumption between residuals and the predicted dependent variable holds, which leads to an increased goodness-of-fit. Our theoretical comparisons, supported by simulations, demonstrate that the increase in goodness-of-fit of the proposed two-parameter estimator also leads to a decrease in the mean square error of $${SLS}_{2},$$ SLS 2 , compared to that of $${SLS}_{1}$$ SLS 1 . Empirical results, where the inflation rate is forecasted based on the oil returns, demonstrate that our proposed $${SLS}_{2}$$ SLS 2 estimator for mixed-frequency models provides better estimates in terms of decreased MSE and improved R2, which in turn leads to better forecasts.

Keywords: Forecast; MIDAS; Shrinkage estimator; Smooth least squares estimator; Oil returns; Inflation (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s00362-023-01520-2

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