The authors study a dynamic, decentralized lemons market with one-time entry and characterize its set of non-stationary equilibria. This framework offers a theory of how a market suffering from adverse selection recovers over time endogenously; given an initial fraction of lemons, the model...

The authors study a variation of the Melitz (2003) model, a monopolistically competitive model with heterogeneity in productivity across establishments and fixed costs of exporting. They calibrate the model to match the employment size distribution of US manufacturing establishments. Export...

A large body of empirical research finds that a pair of regions within a country tends to trade 10 to 20 times as much as an otherwise identical pair of regions across countries. In the context of the standard trade models, the large “border effect” is problematic, because it is consistent...

This paper supersedes Working Paper No. 12-8. We study trade between an informed seller and an uninformed buyer who have existing inventories of assets similar to those being traded. We show that these inventories may lead to prices that increase even absent changes in fundamentals (a .run-up.),...

The authors study trade between a buyer and a seller when both may have existing inventories of assets similar to those being traded. They analyze how these inventories affect trade, information dissemination, and price formation. The authors show that when the buyer's and seller's initial...

The authors examine the source of the large fall and rebound in U.S. trade in the recent recession. While trade fell and rebounded more than expenditures or production of traded goods, they find that relative to the magnitude of the downturn, these trade fluctuations were in line with those in...

This paper is superseded by Working Paper No. 13-14. We study trade between a buyer and a seller who have existing inventories of assets similar to those being traded. We analyze how these inventories affect trade, information dissemination, and prices. We show that when traders’ initial...

A large empirical literature finds that there is too little international trade, and too much intra-national trade to be rationalized by observed international trade costs such as tariffs and transport costs. The literature uses frameworks in which goods are assumed to be produced in just one...

Liquid markets where agents have limited capacity to sign exclusive contracts may permit agents to promise the same asset to multiple counterparties and subsequently default. I show that in such markets an exchange can arise as an intermediary whose only role is to set limits on the number of...

The authors study international transmissions and welfare implications of monetary shocks in a two-country world with multiple stages of production and multiple border-crossings of intermediate goods. This empirically relevant feature is important, as it has opposite implications for two...