RT Journal Article SR Electronic T1 What Hath MPT Wrought JF The Journal of Portfolio Management FD Institutional Investor Journals SP 5 OP 11 DO 10.3905/jpm.1983.5 VO 10 IS 1 A1 Arnott, Robert D. YR 1983 UL http://jpm.pm-research.com/content/10/1/5.abstract AB