%0 Journal Article %A Robert Aumann %A Roberto Serrano %T An Economic Index of Riskiness %J Contributions to game theory and management %D 2007 %P 42 %V 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CGTM_2007_1_a3/ %G en %F CGTM_2007_1_a3