Chew, S H; Epstein, Larry G; Segal, U - In: Econometrica 59 (1991) 1, pp. 139-63
The independence axiom of expected utility theory has recently been weakened to the betweenness axiom. In this paper, an even weaker axiom, called mixture symmetry, is presented. The corresponding functional structure is such that utility is a betweenness functional on part of this domain and...