We study a disclosure decision for a firm's manager with many sources of private information. The presence of multiple numerical signals provides the manager with an opportunity to hide information via aggregation, presenting net amounts in order to show information in its best light. We show...

This paper studies an economy where agents trade using a shared language, so that they do not need to meet in person with goods physically present. Agents provide vague descriptions of proposed net trades, which we interpret as arising either from inherent limitations in what the agents can...

In this paper, we describe a bankruptcy game played in a pure-exchange, perfectly competitive economy, and establish the existence of competitive equilibria. The game admits of lying by borrowers and costly auditing by lenders. The equilibria are characterized by (endogenously determined)...

This paper presents weak requirements on incomplete social preferences, and illustrates how such preferences can be derived from a choice rule. While the requirements do not guarantee the existence of a social welfare function, they do suffice for social preferences to be mapped faithfully to...

We provide a theory of decision under ambiguity in which the worst-case and best-case expected utility representations are sufficient statistics for a decision maker's preferences; we refer to the new utility functions as meta-utilities. Our approach, which generalizes many of the commonly used...

This paper provides a simple explanation for systematic violations of expected utility theory in Allais-type tasks. We demonstrate that the main reason our participants violate expected utility theory is aversion to receiving a zero outcome, and not an attraction to a certain outcome. We call...

The Allais Paradox is a central motivation for several prominent extensions of expected utility, including rank-dependent theories and the theory of fanning-out indifference curves. We examine the ability of these theories to explain the Allais common consequence effect. The only extension of...