RT Journal Article SR Electronic T1 Prediction Skills of Real-World Market Timers JF The Journal of Portfolio Management FD Institutional Investor Journals SP 55 OP 65 DO 10.3905/jpm.24.2.55 VO 24 IS 2 A1 Carl J. Benning YR 1998 UL https://pm-research.com/content/24/2/55.abstract AB