This paper proposes a methodology for analyzing nonlinear pricing data with an illustration on cellular phone. The model incorporates consumer exclusion. Assuming a known tariff, we establish identification of the model primitives using the first-order conditions of both the firm and the...

We study a large market with directed search and signaling. Each seller chooses an investment that determines the quality of the good which is the seller's private information. A seller also chooses the price of the good and the number of selling sites. After observing sellers' choices of prices...

I develop a directed search model of the labor market in which firms choose a recruiting intensity, determining the number of applicants they will interview. Interviewing applicants is costly but reveals their productivity, allowing the firm to hire better workers. I characterize the equilibrium...

In this paper I study the assignment between machines of heterogeneous qualities and workers of heterogeneous skills in an infinite-horizon economy with matching frictions. I characterize first the efficient assignment and then the decentralizing market equilibrium. The efficient allocation...

We study how the presence of multiple participation opportunities coupled with private learning about payoffs affects the ability of agents to coordinate efficiently in global coordination games. Two players face the option to invest irreversibly in a project in one of many rounds. The project...

In this article I briefly review recent developments in search theory. Particular attention is given to the framework of directed search. I first illustrate the inefficiency that arises in the equilibrium of standard (undirected) search models. Then I provide a formulation of directed search and...

In this paper I examine whether a society can improve welfare by imposing a legal restriction to forbid the use of nominal bonds as a means of payments for goods. To do so, I integrate a microfounded model of money with the framework of limited participation. While the asset market is Walrasian,...

We introduce heterogeneous preferences into a tractable model of monetary search to generate price dispersion, and then examine the effects of money growth on price dispersion and welfare. With buyers' search intensity fixed, we find that money growth increases the range of (real) prices and...