RT Journal Article SR Electronic T1 How to combine active management with index funds JF The Journal of Portfolio Management FD Institutional Investor Journals SP 4 OP 10 DO 10.3905/jpm.1986.409037 VO 12 IS 2 A1 Richard A. Brealey YR 1986 UL https://pm-research.com/content/12/2/4.abstract AB