We study learning in a setting where agents receive independent noisy signals about the true value of a variable and then communicate in a network. They naïvely update beliefs by repeatedly taking weighted averages of neighbors' opinions. We show that all opinions in a large society converge to...

Consider a large market with asymmetric information, in which sellers have the option to "cheat" their buyers, and buyers decide whether to repurchase from different sellers. We model active trade relationships as links in a buyer-seller network and study repeated games in such networks....

How do price commitments impact the amount of information firms acquire about potential customers? We examine this question in the context of a competitive market where firms search for information that may disqualify applicants. Contracts are incomplete because the amount of information...

People often see the same evidence but draw opposite conclusions, becoming polarized over time. More surprisingly, disagreements persist even when they are commonly known. We derive a model and present an experiment showing that opinions can diverge when one-dimensional opinions are formed from...

We develop a model of deliberation under heterogeneous beliefs and incomplete information, and use it to explore questions concerning the aggregation of distributed information and the consequences of social integration. We show that when priors are correlated, all private information is...

This paper shows that a new trade-off arises in the optimal contract when contracting takes place with vague information (objective ambiguity), reflecting that real-world contracting often takes place under imprecise information. The choice-theoretic framework captures a decisionmaker's attitude...

We consider a general class of games that have been used to model many economic problems where players' sentiments are believed to play an important role. Dropping the common prior assumption, we identify the relevant notion of sentiments for strategic behavior in these games. This notion is...

We study processing and acquisition of objective information regarding qualities that people care about, intelligence and beauty. Subjects receiving negative feedback did not respect the strength of these signals, were far less predictable in their updating behavior and exhibited an aversion to...

We analyze the design of dynamic menus to sell experience goods. The quality of the product is initially unknown, and the total quantity sold in each period determines the amount of information in the market. We characterize the optimum menu as a function of consumers' beliefs, and the dynamic...

In social-learning environments, we investigate implications of the assumption that people naïvely believe that each previous person's action reflects solely that person's private information. Naïve herders inadvertently over-weight early movers' private signals by neglecting that interim...