Now showing items 1-5 of 5

  • Comparing three ways to update Choquet beliefs 

    Eichberger, Jürgen; Grant, Simon; Kelsey, David (Elsevier, 2010-05)
    We analyze three rules for updating neo-additive capacities. Only for Generalized Bayesian Updating is relative optimism the same for both updated and unconditional capacities. For updates of the other two, either the ...
  • Equally-distributed equivalent utility, ex post egalitarianism and Utilitarianism 

    Grant, Simon; Kajii, Atsushi; Polak, Ben; Safra, Zvi (Elsevier, 2012)
    We provide an axiomatization of expected equally-distributed equivalent-utility social welfare functions in the context of Harsanyi's impartial observer theorem. For this family of social welfare functions, we show what ...
  • Generalized utilitarianism and Harsanyi's impartial observer theorem 

    Grant, Simon; Kajii, Atsushi; Polak, Ben; Safra, Zvi (The Econometric Society, 2010)
    Harsanyi's impartial observer must consider two types of lotteries: imaginary identity lotteries (“accidents of birth”) that she faces as herself and the real outcome lotteries (“life chances”) to be faced by the individuals ...
  • Randomization and Dynamic Consistency 

    Kelsey, David; Grant, Simon; Eichberger, Jürgen (Springer Verlag, 2015)
    Raiffa (Q J Econ 75:690–694, 1961) has suggested that ambiguity aversion will cause a strict preference for randomization. We show that dynamic consistency implies that individuals will be indifferent to ex ante randomizations. ...
  • When is ambiguity-attitude constant? 

    Eichberger, Jürgen; Grant, Simon; Kelsey, David (Springer, 2012)
    This paper studies how updating affects ambiguity attitude. In particular we focus on generalized Bayesian updating of the Jaffray-Philippe sub-class of Choquet Expected Utility preferences. We find conditions for ambiguity ...