%0 Journal Article %A Roger G. Ibbotson %A Laurence B. Siegel %T The World Market Wealth Portfolio* %D 1983 %R 10.3905/jpm.1983.408915 %J The Journal of Portfolio Management %P 5-17 %V 9 %N 2 %U https://jpm.pm-research.com/content/iijpormgmt/9/2/5.full.pdf