I examine strategic implications of competing for consumers with self-control problems. For investment goods, like health clubs, I find that the equilibrium sign-up (lump-sum) fees decrease when competition intensifies, similarly to prices in standard oligopoly models. However, the equilibrium...

In many industries, firms reward their customers for making referrals. We analyze the optimal policy mix of price, advertising intensity, and referral fee for a monopoly when buyers choose to what extent to refer other consumers to the firm. We find that the firm uses its referral fee, but not...

We study a competitive market for a homogeneous good, in which the only uncertainty concerns the number of identical sellers, who are sampled by a finite Poisson process from a continuum of potential participants. It is shown that, in equilibrium, there is price dispersion. Specifically, prices...

I model multimarket competition when consumers value firm scope across markets. Such competition is surprisingly common - consumers in many industries prefer firms that operate in more geographic and/or product markets. I show that these preferences permit firms of differing scopes to coexist in...

Airports have become platforms that derive revenues from both aeronautical and commercial activities. The demand for these services is characterized by a one-way complementarity in that only air travelers can purchase retail goods at the airport terminals. We analyze a model of optimal airport...

This paper studies the effect of competition and consumer myopia on platform profits. The focus is on airports, which provide passengers with aeronautical and commercial services through airlines and retailers. Our results can be summarized as follows. First, we unravel the relationship between...

We characterize the evolution of markups for consumer products in the United States from 2006 to 2019. We use detailed data on prices and quantities for products in more than 100 distinct product categories to estimate demand systems with flexible consumer preferences. We recover markups under...