RT Journal Article SR Electronic T1 Risk-Adjusted Performance JF The Journal of Portfolio Management FD Institutional Investor Journals SP 45 OP 54 DO 10.3905/jpm.23.2.45 VO 23 IS 2 A1 Franco Modigliani A1 Leah Modigliani YR 1997 UL https://pm-research.com/content/23/2/45.abstract AB