%0 Journal Article %A Ram Willner %T A New Tool for Portfolio Managers %B Level, Slope, and Curvature Durations %D 1996 %R 10.3905/jfi.1996.408171 %J The Journal of Fixed Income %P 48-59 %V 6 %N 1 %U https://jfi.pm-research.com/content/iijfixinc/6/1/48.full.pdf