RT Journal Article SR Electronic T1 Invited Editorial Comment JF The Journal of Portfolio Management FD Institutional Investor Journals SP 5 OP 6 DO 10.3905/jpm.2010.37.1.005 VO 37 IS 1 A1 Harold Bierman, Jr. YR 2010 UL https://pm-research.com/content/37/1/5.abstract AB