In product markets, there exists substantial dispersion in prices for transactions of physically identical goods, and incumbent sellers sell at higher prices than entrants. This study develops a theory of dynamic pricing that explains these facts as results from the same fundamental friction:...

We build on recent work analyzing consumers' ability to save by exploiting price dispersion in grocery stores. We show that store expensiveness is not universal but varies across consumers depending on the basket they consume. We incorporate this insight into a decomposition of price variance...

A notable feature of most markets is that firms are multiproduct, in the sense that they offer for sale more than one single type of good. In this paper, I discuss a recent paper, Kaplan et al. (2016), that explores both empirically and theoretically price dispersion in a multiproduct setting. I...

To provide a more flexible workhorse model of temporary price reductions or `sales', this paper presents a substantially generalized `clearinghouse' sales framework. Our framework permits multiple dimensions of firm heterogeneity, and views firms as competing directly in utility rather than...