%0 Journal Article %A Joseph A Lavely %A Gordon Wakefield %A Bob Barrett %T Toward enhancing beta estimates %D 1980 %R 10.3905/jpm.1980.408768 %J The Journal of Portfolio Management %P 43-46 %V 6 %N 4 %U https://jpm.pm-research.com/content/iijpormgmt/6/4/43.full.pdf