%0 Journal Article %A R. Malcolm Richards %A John D. Martin %T Revisions in Earnings Forecasts %B How Much Response? %D 1979 %R 10.3905/jpm.1979.47 %J The Journal of Portfolio Management %P 47-52 %V 5 %N 4 %U https://jpm.pm-research.com/content/iijpormgmt/5/4/47.full.pdf