RT Journal Article SR Electronic T1 Prediction of common stock investment risk JF The Journal of Portfolio Management FD Institutional Investor Journals SP 44 OP 53 DO 10.3905/jpm.1984.408984 VO 11 IS 1 A1 Barr Rosenberg YR 1984 UL https://pm-research.com/content/11/1/44.abstract AB