RT Journal Article SR Electronic T1 Long/Short Equity Investing JF The Journal of Portfolio Management FD Institutional Investor Journals SP 52 OP 63 DO 10.3905/jpm.1993.52 VO 20 IS 1 A1 Bruce I. Jacobs A1 Kenneth N. Levy YR 1993 UL https://pm-research.com/content/20/1/52.abstract AB