RT Journal Article SR Electronic T1 Systematic Risk in Corporate Bond Credit Spreads JF The Journal of Fixed Income FD Institutional Investor Journals SP 7 OP 26 DO 10.3905/jfi.1998.408249 VO 8 IS 3 A1 Monica Pedrosa A1 Richard Roll YR 1998 UL https://pm-research.com/content/8/3/7.abstract AB