Economic Theory

, Volume 34, Issue 2, pp 383–387 | Cite as

Unanimous subjective probabilities

  • Kim C. Border
  • Paolo Ghirardato
  • Uzi SegalEmail author
Exposita Note


This note shows that if the space of events is sufficiently rich and the subjective probability function of each individual is non-atomic, then there is a σ-algebra of events over which everyone will have the same probability function, and moreover, the range of this common probability is the entire unit interval.


Agreement Subjective probability Objective probability 

JEL Classification Numbers

C69 D79 D89 


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Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  1. 1.Division of the Humanities and Social SciencesCalifornia Institute of TechnologyPasadenaUSA
  2. 2.DSMAUniversità di Torino and Collegio Carlo AlbertoMoncalieriItaly
  3. 3.Department of EconomicsBoston CollegeChestnut HillUSA

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