This essay reports (without attempting an exhaustive survey of the literature) on a body of formal research rooted in the models with which these authors were concerned : the model of bargaining, the model of coalitional opportunities, and the model of distribution of unproduced resources; and...

For the problem of adjudicating conflicting claims, a rule is consistent if the choice it makes for each problem is always in agreement with the choice it makes for each "reduced problem" obtained by imagining that some claimants leave with their awards and reassessing the situation from the...

We consider the problem of adjudicating conflicting claims. A rule to solve such problems is consistent if the choice it makes for each problem is always in agreement with the choice it makes for each "reduced problem" obtained by imagining that some claimants leave with their awards and...

This paper considers learning when the distinction between risk and ambiguity matters. It first describes thought experiments, dynamic variants of those provided by Ellsberg, that highlight a sense in which the Bayesian learning model is extreme - it models agents who are implausibly ambitious...

We applied a notion of minimal-monotonic extention to a variety of economic models and showed that the minimal monotonic extension of a number of solutions can be easily calculated.