RT Journal Article SR Electronic T1 Credit Rating and Corporate Defaults JF The Journal of Fixed Income FD Institutional Investor Journals SP 30 OP 40 DO 10.3905/jfi.2001.319303 VO 11 IS 3 A1 Chunsheng Zhou YR 2001 UL https://pm-research.com/content/11/3/30.abstract AB Moody's default data from 1971 through 2000 indicate that default rates have been on the rise across almost every major rating category since the early 1970s, stopping only in the early 1990s. This evidence is consistent with the widespread belief among practitioners that the credit quality of U.S. corporate debt has worsened in the recent past. The result challenges the perception that credit ratings provide reliable guidance to fixed-income investments and has important implications for risk management and credit pricing.