Would you have predicted this?
This paper investigates the impact of credit rating changes on the sovereign spreads in the European Union and investigates the macro and financial factors that account for the time varying effects of a given credit rating change. We find that changes of ratings are informative, economically important and highly statistically significant in panel models even after controlling for a host of domestic and global fundamental factors and investigating various functional forms, time and country groupings and dynamic structures. Dynamic panel model estimates indicate that a credit rating upgrade decreases CDS spreads by about 45 basis points, on average, for EU countries.
I would not have! Perhaps I am biased from living in a country where credit ratings are a contrary indicator of sovereign interest rates, and where municipal defaults inevitably lead to helpful comments from ratings agencies like “If the payment doesn’t get made, we would downgrade the rating.” Apparently, though, sovereign ratings matter, at least in Europe and at least at some points on the ratings scale.1 Read more »