A prominent feature of the Kiyotaki–Wright model of commodity money is multiplicity of dynamic equilibria. We show that the extent of multiplicity hinges on the frequency of search. Holding fixed the average number of meetings over time, we vary search frequency by altering the interval...

Option value arises in environments where an investment needs to be made under uncertainty. The decision to invest in postsecondary education is a perfect example. Students, as they learn about the uncertain educational outcomes, can drop out or transfer up to harder and more rewarding schools...

We present a dynamic model of college education where the students face uncertainty about their income stream after graduation due to unobserved heterogeneity in their innate scholastic ability. As students write exams, they reevaluate their expectations and may find it optimal to drop out and...

We provide an analytical characterization of the optimal anticipated monetary policy in an economy where agents have a precautionary savings motive due to random production opportunities and the presence of borrowing constraints. Non storable production makes intrinsically useless outside money...

We study a model of firm price setting with customer markets and empirically evaluate its predictions. Our framework captures the dynamics of customers in response to a change in the price set by firms, describes the behavior of optimal prices in the presence of customer retention concerns, and...

We study the optimal anticipated monetary policy in a flexible-price economy featuring heterogenous agents and incomplete markets which give rise to a business cycle. The optimal policy prescribes monetary expansions in recessions, when insurance is most needed by cash-poor unproductive agents....

We develop a framework to estimate the aggregate capital-labor elasticity of substitution by aggregating the actions of individual plants, and use it to assess the decline in labor's share of income in the US manufacturing sector. The aggregate elasticity reflects substitution within plants and...

We estimate the aggregate elasticity of substitution between capital and labor in the US manufacturing sector. We show that the aggregate elasticity of substitution can be expressed as a simple function of plant level structural parameters and sufficient statistics of the distribution of plant...