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This paper examines the spillover effects of sovereign rating news on European financial markets during the period 2007-2010. The authors' main finding is that sovereign rating downgrades have statistically and economically significant spillover effects both across countries and financial markets. The sign and magnitude of the spillover effects depend both on the type of announcements, the source country experiencing the downgrade and the rating agency from which the announcements originate. However, they also find evidence that downgrades to near speculative grade ratings for relatively large economies such as Greece have systematic spillover effects. Rating-based triggers may help explain these results.
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