%0 Journal Article %E André F Perold %T Invited Editorial Comment %B Risk is a Choice Rather Than a Fate %D 2009 %R 10.3905/JPM.2009.36.1.004 %J The Journal of Portfolio Management %P 4-5 %V 36 %N 1 %U https://jpm.pm-research.com/content/iijpormgmt/36/1/4.full.pdf