We examine the conditions under which competitive equilibria can be obtained as the limit, when the number of strategic traders gets large, of Nash equilibria in economies with asymmetric information on agents' effort and possibly imperfect observability of agents' trades. Convergence always...

A Capital Asset Pricing Model of a stock market economy is examined under different corporate governance structures in which the objectives of managers and entrepreneurs in choosing the risk composition of their firms' returns are not aligned with those of shareholders and investors because of...

We study equilibria for economies with hidden action in environments in which the agents' contractual relationships with competing financial intermediaries cannot be monitored (or are not contractible upon). We fully characterize equilibrium allocations and contracts for such economies, as well...

Do Walrasian markets function orderly in the presence of adverse selection? In particular, is their outcome efficient? This paper addresses these questions in the context of a Rothschild and Stiglitz insurance economy. We identify an externality associated with the presence of adverse selection...

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We develop a dynamic model of identity formation that explains why ethnic minorities may choose to adopt oppositional identities (i.e. some individuals may reject or not the dominant culture) and why this behavior may persist over time. We first show that the prevalence of an oppositional...

We study a class of moral hazard economies in which a principal interacts with several agents. In these economies first best allocations can be implemented via full information extraction when side-trades between agents can be restricted. When instead side-trades cannot be restricted, the...