John, Kose; Ravid, S. Abraham; Reisel, Natalia - In: Financial Management 39 (2010) 2, pp. 489-513
"This paper provides new evidence regarding the information content of debt ratings. We show that noninvestment grade subordinated issues are consistently priced too high (the yield is too low), and the reverse is true for some investment grade bonds. We relate this empirical bias to a notching...