RT Journal Article SR Electronic T1 Risk and return for longterm securities JF The Journal of Portfolio Management FD Institutional Investor Journals SP 57 OP 64 DO 10.3905/jpm.1984.408986 VO 11 IS 1 A1 Robert M. Soldofsky YR 1984 UL https://pm-research.com/content/11/1/57.abstract AB