%0 Journal Article %A Haim Levy %T The CAPM and the Investment Horizon %D 1981 %R 10.3905/jpm.1981.408794 %J The Journal of Portfolio Management %P 32-40 %V 7 %N 2 %U https://jpm.pm-research.com/content/iijpormgmt/7/2/32.full.pdf