RT Journal Article SR Electronic T1 “Watchman, Tellus of The Night!” JF The Journal of Portfolio Management FD Institutional Investor Journals SP 75 OP 80 DO 10.3905/jpm.1984.408961 VO 10 IS 3 A1 James D. McWilliams YR 1984 UL https://pm-research.com/content/10/3/75.abstract AB