Two producers offer differentiated goods to a representative consumer. The buyer has distinct marginal valuations for the quality of the products. Each producer knows perfectly the consumer’s taste for its own product, but remains uninformed about its taste for the rival’s product. When each...

We study the effects of exclusive contracts and market-share discounts (i.e., discounts conditioned on the share a firm receives of the customer’s total purchases) in an adverse selection model where firms supply differentiated products and compete in non-linear prices. We show that exclusive...

This paper analyzes a model of capacity choice followed by price competition under demand uncertainty. Under various assumptions regarding the nature and timing of demand realizations, we obtain general predictions concerning the role of demand uncertainty on equilibrium outcomes. We show that...

We examine price competition under product-specific network effects, in a duopoly where the products are differentiated horizontally and vertically. When consumers' expectations are not affected by prices, firms may share the market equally, or one firm (possibly the low-quality one) may capture...

In a competitive environment, switching costs have two effects. First, they increase the market power of a seller with locked-in customers. Second, they increase competition for new customers. I provide conditions under which switching costs decrease or increase equilibrium prices. Taken...

We consider the interaction between an incumbent firm and a potential entrant, and examine how this interaction is affected by demand fluctuations. Our model gives rise to procyclical entry, prices, and price-cost margins, although the average price in the market can be countercyclical if the...

We study the entrance in a retail market of consumers who are less elastic because of hurriedness and lack of information. Theory predicts that firms react by increasing prices to expand surplus extraction, but this effect weakens as market competition increases. High frequency data from Italian...

We set up a duopoly model with dynamic capacity constraints under demand uncertainty. We endogenize the investment decisions of the firms, examine their intertemporal pricing behavior, their incentives to merge, as well as the welfare implications of a merger. Whereas under known and constant...

The paper studies the impact of market integration on investment incentives in non-competitive industries. It distinguishes between investment in transportation and production cost-reducing technologies. Each domestic firm is controlled by a national regulator in a common market made of two...