RT Journal Article SR Electronic T1 Time diversification JF The Journal of Portfolio Management FD Institutional Investor Journals SP 5 OP 9 DO 10.3905/jpm.1980.408754 VO 6 IS 3 A1 William P. Lloyd A1 Richard L. Haney, Jr. YR 1980 UL https://pm-research.com/content/6/3/5.abstract AB