Mixture-betweenness: Uncertainty and commitment

• Authors: Fernando Payró Chew
• Journal of Economic Theory, No. 230, Article 106097, December 2025

This paper develops axiomatic models of preference under uncertainty and preference for commitment that satisfy Mixture-Betweenness, a weakening of the Independence axiom originally proposed by Chew (1989) and Dekel (1986). A central contribution of the paper is a general representation theorem that can be applied across a wide range of domains.