information. These are used to give a formal de…finition of Ambiguity and, consequently, to distinguish between ambiguous and …The concept of Ambiguity designates those situations where the information available to the decision maker is …? The present paper fi…lls these gaps. Speci…fically, it identifi…es those information structures that are incompatible with …

The paper analyzes the effects of strategic behavior by an insider in a price discovery process, akin to an information …

We consider a model where agents work in sequence on a project, share information not available to the principal, and …

and public information). In the case of private value, it is well-known that the Vickrey auction (for one good) or its … buyer's valuation can depend on other buyers' private information (the case of "common" or interdependent values … buyer's information can be represented as a one-dimensional signal (proposition 1 and 2). …

This paper looks at implementation in economic environments when agents have perfect information about the state of the …