Testing for Common Cycles in Non-Stationary VARs with Varied Frequency Data

Thomas B. Götz, Alain Hecq and Jean-Pierre Urbain

A chapter in VAR Models in Macroeconomics – New Developments and Applications: Essays in Honor of Christopher A. Sims, 2013, vol. 32, pp 361-393 from Emerald Group Publishing Limited

Abstract: This article proposes a new approach to detecting the presence of common cyclical features when several time series are sampled at different frequencies. We generalize the common-frequency approach introduced byEngle and Kozicki (1993)andVahid and Engle (1993). We start with the mixed-frequency VAR representation investigated inGhysels (2012)for stationary time series. For non-stationary time series in levels, we show that one has to account for the presence of two sets of long-run relationships. The first set is implied by identities stemming from the fact that the differences of the high-frequencyI(1)regressors are stationary. The second set comes from possible additional long-run relationships between one of the high-frequency series and the low-frequency variables. Our transformed vector error-correction model (VECM) representations extend the results ofGhysels (2012)and are important for determining the correct set of variables to be used in a subsequent common cycle investigation. This fact has implications for the distribution of test statistics and for forecasting. Empirical analyses with quarterly real gross national product (GNP) and monthly industrial production indices for, respectively, the United States and Germany illustrate our new approach. We also conduct a Monte Carlo study which compares our proposed mixed-frequency models with models stemming from classical temporal aggregation methods.

Keywords: Common cycles; mixed frequency VAR; cointegration; MIDAS; C32 (search for similar items in EconPapers)
Date: 2013
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Related works:
Working Paper: Testing for common cycles in non-stationary VARs with varied frecquency data (2013)
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Persistent link: https://EconPapers.repec.org/RePEc:eme:aecozz:s0731-9053(2013)0000031010

DOI: 10.1108/S0731-9053(2013)0000031010

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