Do We Need High Frequency Data to Forecast Variances?
Christophe Hurlin (),
Bertrand Candelon () and
Sébastien Laurent ()
Annals of Economics and Statistics, 2016, issue 123-124, 135-174
In this paper we study various MIDAS models for which the future daily variance is directly related to past observations of intraday predictors. Our goal is to determine if there exists an optimal sampling frequency in terms of variance prediction. Via Monte Carlo simulations we show that in a world without microstructure noise, the best model is the one using the highest available frequency for the predictors. However, in the presence of microstructure noise, the use of very high-frequency predictors may be problematic, leading to poor variance forecasts. The empirical application focuses on two highly liquid assets (i.e., Microsoft and S&P 500). We show that, when using raw intraday squared log-returns for the explanatory variable, there is a ?high-frequency wall? ? or frequency limit ? above which MIDAS-RV forecasts deteriorate or stop improving. An improvement can be obtained when using intraday squared log-returns sampled at a higher frequency, provided they are pre-filtered to account for the presence of jumps, intraday diurnal pattern and/or microstructure noise. Finally, we compare the MIDAS model to other competing variance models including GARCH, GAS, HAR-RV and HAR-RV-J models. We find that the MIDAS model ? when it is applied on filtered data ?provides equivalent or even better variance forecasts than these models.
Keywords: Variance Forecasting; MIDAS; High-Frequency Data (search for similar items in EconPapers)
JEL-codes: C22 C53 G12 (search for similar items in EconPapers)
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Working Paper: Do We Need High Frequency Data to Forecast Variances? (2016)
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Persistent link: https://EconPapers.repec.org/RePEc:adr:anecst:y:2016:i:123-124:p:135-174
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