RT Journal Article SR Electronic T1 Investment rules and the Ergodic Hypothesis JF The Journal of Portfolio Management FD Institutional Investor Journals SP 50 OP 58 DO 10.3905/jpm.1986.409082 VO 13 IS 1 A1 Michael R. Granito YR 1986 UL https://pm-research.com/content/13/1/50.abstract AB