G2TT
来源类型Discussion paper
规范类型论文
来源IDDP9171
DP9171 Bank ratings: What determines their quality?
Harald Hau; Sam Langfield
发表日期2012-10-07
出版年2012
语种英语
摘要This paper examines the quality of credit ratings assigned to banks in Europe and the United States by the three largest rating agencies over the past two decades. We interpret credit ratings as relative assessments of creditworthiness, and define a new ordinal metric of rating error based on banks? expected default frequencies. Our results suggest that rating agencies assign more positive ratings to large banks and to those institutions more likely to provide the rating agency with additional securities rating business (as indicated by private structured credit origination activity). These competitive distortions are economically significant and help perpetuate the existence of ?too-big-to-fail? banks. We also show that, overall, differential risk weights recommended by the Basel accords for investment grade banks bear no significant relationship to empirical default probabilities.
主题Financial Economics
关键词Sovereign risk Rating agencies Credit ratings Conflicts of interest Prudential regulation
URLhttps://cepr.org/publications/dp9171
来源智库Centre for Economic Policy Research (United Kingdom)
资源类型智库出版物
条目标识符http://119.78.100.153/handle/2XGU8XDN/538006
推荐引用方式
GB/T 7714
Harald Hau,Sam Langfield. DP9171 Bank ratings: What determines their quality?. 2012.
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