%0 Journal Article %E Peter L. Bernstein %T Sour Dough is Hardly Pumpernickel %D 1993 %R 10.3905/jpm.1993.1 %J The Journal of Portfolio Management %P 1-1 %V 19 %N 3 %U https://jpm.pm-research.com/content/iijpormgmt/19/3/1.full.pdf