Since at least de Finetti [7], preference symmetry assumptions have played an important role in models of decision … making under uncertainty. In the current paper, we explore (1) the relationship between the symmetry assumption of Klibanoff …, Mukerji and Seo (KMS) [21] and alternative symmetry assumptions in the literature, and (2) assuming symmetry, the relationship …

approach." We argue that while exchangeability, interpreted as symmetry of evidence, is a weak assumption, when combined with …, and there is little evidence of symmetry, this implication of de Finetti's hypotheses is not intuitive. This motivates our …

Within a simple setup, we show that proportional taxation is implied by three properties: efficiency, symmetry, and … monotonicity. Efficiency: redistribution has no cost. Symmetry: members of the society with the same performance obtain the same …