RT Journal Article SR Electronic T1 The tricks of the trade JF The Journal of Portfolio Management FD Institutional Investor Journals SP 36 OP 42 DO 10.3905/jpm.1980.408739 VO 6 IS 2 A1 Gilbert L Beebower A1 William Priest YR 1980 UL https://pm-research.com/content/6/2/36.abstract AB