Theory and Decision

, Volume 39, Issue 2, pp 213–218 | Cite as

Schur convexity, quasi-convexity and preference for early resolution of uncertainty

  • Zvi Safra
  • Eyal Sulganik
Shorter Papers, Letters To The Editor


This paper deals with decision makers who choose among information systems. It shows that the properties of Schur convexity and of quasi-convexity are equivalent, even when general preferences are considered. Since Schur convexity is closely related to having a willingness to accept information and since quasi-convexity is closely related to having a preference for early resolution of the uncertainty about which information 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.


Information System Decision Maker General Preference Early Resolution 


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Copyright information

© Kluwer Academic Publishers 1995

Authors and Affiliations

  • Zvi Safra
    • 1
  • Eyal Sulganik
    • 1
  1. 1.Faculty of Management and Department of EconomicsTel Aviv UniversityTel AvivIsrael

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