I develop a theory of digital marketplaces where an intermediary provides a platform for firms to advertise their product and where consumers need to engage in costly search if they want to learn more about the products. First, I show that when prices are observable prior to search, a more...

Initial applications of prediction markets (PMs) indicate they provide good forecasting instruments in many settings, such as elections, the box office, or product sales. One particular characteristic of these “first-generation” (G1) PMs is that they link the payoff value of a stock's share...

We examine the equilibrium interaction between a market for price information (controlled by a gatekeeper) and the homogenous product market it serves. The gatekeeper charges fees to firms that advertise prices on its Internet site and to consumers who access the list of advertised prices....

We examine the equilibrium interaction between a market for price information (controlled by a gatekeeper) and the homogenous product market it serves. The gatekeeper charges fees to firms that advertise prices on its Internet site and to consumers who access the list of advertised prices....

I consider a situation, where the agent can acquire payoff-relevant information either before or after the contract is signed. To raise efficiency, the principal might solicit information; to retain all surplus, however, she must prevent precontractual information gathering. The following class...

This paper investigates how inflation expectations evolve. In particular, we analyze the time-varying nature of the propensity to update expectations and its potential determinants. For this purpose we set up a flexible econometric model that tracks the formation of inflation expectations of...

We use a limited information environment to mimic the state of confusion in an experimental, repeated public goods game. The results show that reinforcement learning leads to dynamics similar to those observed in standard public goods games. However, closer inspection shows that individual decay...

Given that many of the predicted effects of climate change are considered imminent and unavoidable, the need to mainstream adaptation as a viable coping measure among private households is becoming a topic of increasing importance. However, little research to date has assessed the factors...

This paper is concerned with the role of committees in collective decision-makingprocesses in a world where agents must be motivated to collect information. Committees improvethe quality of decision-making by providing information and by coordinating the collection ofinformation. We address two...

We study a model of collective decision making with endogenous information collection.Agents collect information about the consequences of a project, communicate, and then vote onthe project. We examine under what conditions communication may increase the probability thatgood decisions are made....