This paper studies a novel dynamic principle agent setting with moral hazard and adverse selection (persistent as well as repeated). In the model an expert whose skills are his private information, faces a finite sequence of tasks, one after the other. Each task's level of difficulty is an...

We relax the common assumption of homogeneous beliefs in principal-agent relationships with adverse selection. In an evolutionary learning set-up, which is imitative, principals can have different beliefs about the distribution of agents' types in the population. The resulting nonlinear dynamic...

We study market dynamics when an owner learns over time about the quality of her asset. Since this information is private, the owner sells strategically to a less informed buyer following sufficient negative information. In response, market prices feature a "U-shape" relative to the length of...

The health care industry in some countries displays a gated structure. Rather than approaching a specialist directly, a patient will first seek a referral from a general practitioner. We provide one possible explanation for such an industry structure. If the outcome of treatment depends on the...

We allow buyers to choose the timing of offers in a dynamic adverse selection model with a single seller. Buyers have private information and can delay their one-time private offers to learn from other buyers by observing trading behavior. We find that the equilibrium exhibits maximum delay in...

The analysis of adverse selection problems in seller-buyer relationships has typically been based on the assumption that private information is uncertifiable, while in practice it may well be certifiable. If a buyer has certifiable private information, he can conceal evidence, but he cannot...

We provide several generalizations of Mailath's (1987) result that in games of asymmetric information with a continuum of types incentive compatibility plus separation implies differentiability of the informed agent's strategy. The new results extend the theory to classic models in finance such...

Governments must usually take policy decisions with an imperfect knowledge of the economic actors' type or the actors' effort level. These issues are addressed within the framework of classic adverse selection or moral hazard models. I discuss in this paper how would the government’s and the...

We study non-stationary dynamic decentralized markets with adverse selection in which trade is bilateral and prices are determined by bargaining. Examples include labor markets, housing markets, and markets for financial assets. We characterize equilibrium, and identify the dynamics of...

This paper studies asset markets where buyers of assets do not inherit private information from previous owners and must learn asset quality over time. Imperfect information transmission reduces asymmetric information, but also reduces the trading volume, prices and efficiency. This result is...