RT Journal Article SR Electronic T1 TIPP JF The Journal of Portfolio Management FD Institutional Investor Journals SP 38 OP 42 DO 10.3905/jpm.1988.409172 VO 14 IS 4 A1 Tony Estep A1 Mark Kritzman YR 1988 UL https://pm-research.com/content/14/4/38.abstract AB