RT Journal Article SR Electronic T1 Invited Editorial Comment JF The Journal of Portfolio Management FD Institutional Investor Journals SP 1 OP 2 DO 10.3905/jpm.2012.38.4.001 VO 38 IS 4 A1 Jones, Bob YR 2012 UL http://jpm.pm-research.com/content/38/4/1.abstract AB