We examine how revenue-sharing and profit-sharing stakes affect price competition intensity under duopoly. Our analysis builds on the price competition framework introduced by Varian (1980) and accounts for fundamental asymmetries in terms of cost and consumer loyalty. A stake exists when a firm...

Leading retailers have opened up their online storefronts to competitors by operating marketplaces for third party sellers. We develop a model of entry and price competition at the product market level, and show that the retailer softens competition through control of the storefront and benefits...

I present a model to assess the impact of demand-side factors on theconcentration of sales within large product assortments. Consumers facea search problem within an assortment of horizontally differentiatedproducts supplied by a monopolist. They may search for a product matchby drawing products...