Optimal Information Design for Search Goods

Abstract

We consider a monopoly pricing problem in which a consumer with an uncertain valuation of a search good receives a signal of value before deciding whether to visit the seller. She discovers her true value upon visiting and before purchase. We characterize the consumer-optimal and seller-worst signals in such an environment and deliver two main insights. First, both the consumer-optimal and seller-worst signals generate a unit-elastic demand. Second, the two signals coincide if and only if visitation costs are sufficiently small.