TY - JOUR T1 - The cyclical pattern in corporate bond quality JF - The Journal of Portfolio Management SP - 26 LP - 29 DO - 10.3905/jpm.1980.408736 VL - 6 IS - 2 AU - Michael G. Ferri AU - Charles G. Martin Y1 - 1980/01/31 UR - https://pm-research.com/content/6/2/26.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -