SCHUR CONVEXITY, QUASI-CONVEXITY AND PREFERENCE FOR EARLY RESOLUTION OF UNCERTAINTY

This paper deals with decision makers who choose among information sys tems. It shows that the properties of Schur convexity and of quasi-con vexity are equivalent, even when general preferences are considered. S ince Schur convexity is closely related to having a willingness to acc ept information and since quasi-convexity is closely related to having a preference for early resolution of the uncertainty about which info rmation system prevails, then it follows that the equivalence implies that decision makers prefer more information to less if, and only if, they prefer early resolution of uncertainty to later resolution.