Credit ratings and government bonds: evidence before, during and after european debt crisis

Abstract

This project investigates if there was any influence of credit rating agencies and long-termgovernment bond yields on each other before, during and after Europe’s sovereign debt crisis. This is addressed by estimating the relationship and causality between sovereign debt ratings or bond yields and macroeconomic and structural variables following a different procedure to explain ratings and bond yields. It is found evidence that, in distressed periods, ratings and yields do affect one another. This suggests that a rating downgrade might create a self-fulfilling prophecy, leading relatively stable countries to default.