RT Journal Article SR Electronic T1 Sources of value and risk in common stocks JF The Journal of Portfolio Management FD Institutional Investor Journals SP 5 OP 13 DO 10.3905/jpm.1983.408923 VO 9 IS 4 A1 Tony Estep A1 Nick Hanson A1 Cal Johnson YR 1983 UL https://pm-research.com/content/9/4/5.abstract AB