This paper analyzes volatility spillovers in multivariate GARCH-type models. We show that the cross-effects between the conditional variances determine the persistence of the transmitted volatility innovations. In particular, the influence of a foreign volatility innovation on a conditional...

This paper documents that ECB announcements increase the stock market volatility in the euro area (EA) on the same day. I consider two volatility measures from January 1998 to May 2019. First, a realized volatility measure uses intraday data for 8 different stock market indices. Second, a range...