U-MIDAS: MIDAS regressions with unrestricted lag polynomials

Arbeitspapier

Mixed-data sampling (MIDAS) regressions allow to estimate dynamic equations that explain a low-frequency variable by high-frequency variables and their lags. When the difference in sampling frequencies between the regressand and the regressors is large, distributed lag functions are typically employed to model dynamics avoiding parameter proliferation. In macroeconomic applications, however, differences in sampling frequencies are often small. In such a case, it might not be necessary to employ distributed lag functions. In this paper, we discuss the pros and cons of unrestricted lag polynomials in MIDAS regressions. We derive unrestricted MIDAS regressions (U-MIDAS) from linear high-frequency models, discuss identification issues, and show that their parameters can be estimated by OLS. In Monte Carlo experiments, we compare U-MIDAS to MIDAS with functional distributed lags estimated by NLS. We show that U-MIDAS generally performs better than MIDAS when mixing quarterly and monthly data. On the other hand, with larger differences in sampling frequencies, distributed lag-functions outperform unrestricted polynomials. In an empirical application on out-of-sample nowcasting GDP in the US and the Euro area using monthly predictors, we find a good performance of U-MIDAS for a number of indicators, albeit the results depend on the evaluation sample. We suggest to consider U-MIDAS as a potential alternative to the existing MIDAS approach in particular for mixing monthly and quarterly variables. In practice, the choice between the two approaches should be made on a case-by-case basis, depending on their relative performance.

Angaben zum Objekt

• ISBN: 978-3-86558-781-7
• Sprache: Englisch

Verweise und Beziehungen

• Erschienen in: Series: Discussion Paper Series 1 ; No. 2011,35

Klassifikation und Themen

• Klassifikation: Wirtschaft ; Prices, Business Fluctuations, and Cycles: Forecasting and Simulation: Models and Applications ; Forecasting Models; Simulation Methods
• Thema: mixed data sampling ; distributed lag polynomals ; time aggregation ; now-casting

Beteiligte, Orts- und Zeitangaben

• Ereignis: Geistige Schöpfung
• (wer): Foroni, Claudia ; Marcellino, Massimiliano ; Schumacher, Christian
• Ereignis: Veröffentlichung
• (wer): Deutsche Bundesbank
• (wo): Frankfurt a. M.
• (wann): 2011

Weitere Informationen

• Handle: http://hdl.handle.net/10419/55529
• Letzte Aktualisierung: 10.03.2025, 11:44 MEZ