TY - JOUR T1 - The duration of surplus JF - The Journal of Portfolio Management SP - 19 LP - 22 DO - 10.3905/jpm.1990.409251 VL - 16 IS - 2 AU - Thomas E. Messmore Y1 - 1990/01/31 UR - https://pm-research.com/content/16/2/19.abstract N2 - 300 Multiple ChoicesThis is a pdf-only article and there is no markup to show you.full-text.pdf ER -