%0 Journal Article %A Donald M. Peterson %T Are Financial Ratios Worth the Effort? %D 1975 %R 10.3905/jpm.1975.51 %J The Journal of Portfolio Management %P 51-54 %V 2 %N 1 %U https://jpm.pm-research.com/content/iijpormgmt/2/1/51.full.pdf