This study has investigated to which extent rating events influence sovereign bond yield spreads and overall financial market volatility. While rating agencies are part and parcel of today's financial markets, the study succeeds in tracing some independent effect that ratings exert on financial...

The increased importance of rating agencies for emerging-market finance has brought their work to the attention of a wider group of observers - and under criticism. This paper evaluates whether the importance of ratings for developing-country finance has changed since the Asian Crisis and...