پیام های مستند و رتبه بندی اعتباری مستقل: شواهدی از کشورهای اروپایی تحت برنامه های اصلاحات ریاضت اقتصادی

The paper examines the role of newswire messages during the European debt crisis. In particular, this study quantifies how this news metric, revealed by statements electronically recorded, as well as by newspaper articles, affects credit ratings. Through a sample of three European countries with sovereign debt problems and under strict austerity programmes, i.e., Greece, Ireland, and Portugal, daily data spanning the period of 2009 to 2011, and parametric, nonparametric and ordered probit panel methodologies, the obtained results document that the news variable significantly affects credit ratings, particularly when news comes from market sources but less so when the news is from politicians.