RT Journal Article SR Electronic T1 Comment The CAPM and the investment horizon JF The Journal of Portfolio Management FD Institutional Investor Journals SP 64 OP 65 DO 10.3905/jpm.1981.408826 VO 8 IS 1 A1 Henry A. Latané YR 1981 UL https://pm-research.com/content/8/1/64.abstract AB