In a market in which sellers compete by posting mechanisms, we study how the properties of the meeting technology affect the mechanism that sellers select. In general, sellers have incentive to use mechanisms that are socially efficient. In our environment, sellers achieve this by posting an...

We study a dynamic, decentralized lemons market with one-time entry and characterize its set of equilibria. Our framework offers a theory of how “frozen” markets suffering from adverse selection recover or “thaw” over time endogenously; given an initial fraction of lemons, our model...

I construct a directed search model in which firms decide whether to enter a market and how many positions to create. Within this framework, the number of firms and the size of each firm are determined endogenously, wages play an allocative role in the matching process, and the frictions...

Workers in less-secure jobs are often paid less than identical-looking workers in more secure jobs. We show that this lack of compensating differentials for unemployment risk can arise in equilibrium when all workers are identical and firms differ only in job security (i.e. the probability that...