Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/58264
Authors: 
Golosnoy, Vasyl
Gribisch, Bastian
Liesenfeld, Roman
Year of Publication: 
2012
Series/Report no.: 
Economics working paper / Christian-Albrechts-Universität Kiel, Department of Economics 2012-06
Abstract: 
Using a novel three-phase model based upon a conditional autoregressive Wishart (CAW) framework for the realized (co)variances of the US Dow Jones and the German stock index DAX, we analyze intra-daily volatility spillovers between the US and German stock markets. The proposed model explicitly accounts for three distinct intraday periods resulting from the non-synchronous and partially overlapping opening hours of the two markets. We find evidence of significant short-term volatility spillovers from one intraday period to the next within both markets ('heat-wave effects') as well as across the two markets ('meteor-shower effects'). Furthermore, we find that during the subprime crisis the general persistence of short-term volatility shocks is considerably higher and the spillovers effects between the US and the German stock markets are significantly larger than before the crisis, indicating substantial volatility contagion effects.
Subjects: 
Conditional autoregressive Wishart model
Impulse response analysis
Observationdriven models
Realized covariance matrix
Subprime crisis
JEL: 
C32
C58
G17
Document Type: 
Working Paper

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