%0 Journal Article %A Jeffrey A. Frankel %T Portfolio shares as ‘Beta Breakers’ %D 1985 %R 10.3905/jpm.1985.409020 %J The Journal of Portfolio Management %P 18-23 %V 11 %N 4 %U https://jpm.pm-research.com/content/iijpormgmt/11/4/18.full.pdf