RT Journal Article SR Electronic T1 Benchmarks for stochastic models JF The Journal of Portfolio Management FD Institutional Investor Journals SP 47 OP 53 DO 10.3905/jpm.1991.409342 VO 17 IS 4 A1 R. Blaine Roberts A1 Michael L. Winchell YR 1991 UL https://pm-research.com/content/17/4/47.abstract AB