PT - JOURNAL ARTICLE AU - Robert M. Soldofsky TI - Risk and return for longterm securities AID - 10.3905/jpm.1984.408986 DP - 1984 Oct 31 TA - The Journal of Portfolio Management PG - 57--64 VI - 11 IP - 1 4099 - https://pm-research.com/content/11/1/57.short 4100 - https://pm-research.com/content/11/1/57.full