This article uses networks to study price dispersion in seller-buyer markets where buyers with unit demand interact with multiple, but not all, sellers; and buyers and sellers compete on prices after they meet. The central finding of this article is that price dispersion is determined by the...

In a four-treatment experiment, we test some of the hypotheses in Garcia-Gallego et al.(2004) concerning competition among a number of firms of which some (or all) are indexed by a price-comparison engine facilitating buyers' search process. In this paper, we isolate individual behavior from...