Testing for Granger causality in large mixed-frequency VARs

Thomas Götz and Alain Hecq

No 28, Research Memorandum from Maastricht University, Graduate School of Business and Economics (GSBE)

Abstract: In this paper we analyze Granger causality testing in a mixed-frequency VAR, originally proposed by Ghysels (2012), where the difference in sampling frequencies of the variables is large. In particular, we investigate whether past information on a low-frequency variable help in forecasting a high-frequency one and vice versa. Given a realistic sample size, the number of high-frequency observations per low-frequency period leads to parameter proliferation problems in case we attempt to estimate the model unrestrictedly. We propose two approaches to solve this problem, reduced rank restrictions and a Bayesian mixed-frequency VAR. For the latter, we extend the approach in Banbura et al. (2010) to a mixed-frequency setup, which presents an alternative to classical Bayesian estimation techniques. We compare these methods to a common aggregated low-frequency model as well as to the unrestricted VAR in terms of their Granger non-causality testing behavior using Monte Carlo simulations. The techniques are illustrated in an empirical application involving daily realized volatility and monthly business cycle fluctuations.

Date: 2014-01-01
New Economics Papers: this item is included in nep-ecm, nep-ets, nep-for and nep-mst
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Citations: View citations in EconPapers (2)

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Related works:
Journal Article: Testing for Granger causality in large mixed-frequency VARs (2016)
Working Paper: Testing for Granger Causality in Large Mixed-Frequency VARs (2015)
Working Paper: Testing for Granger causality in large mixed-frequency VARs (2015)
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Persistent link: https://EconPapers.repec.org/RePEc:unm:umagsb:2014028

DOI: 10.26481/umagsb.2014028

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