This paper argues that revenue sharing is a valuable instrument in vertically separated industries when there is intrabrand competition among the downstream firms, demand is stochastic or variable, and downstream inventory is chosen before demand is realized. In these environments, the upstream...

The ability to restrict access to distribution channels or input suppliers is commonly thought to be a barrier to entry. Many have argued that a monopolist can use vertical integration as means of foreclosing entry. We consider a duopoly market and ask whether duopolists who control access to...

Abstract In a homogeneous good, Cournot duopoly model, entry may occur even when the potential entrant has no cost advantage and no independent access to distribution. By sinking its costs of production before negotiating with the incumbents, the entrant creates an externality that induces the...

We demonstrate that demand uncertainty alone can lead to equilibrium product variety. We consider a simple environment in which when demand is certain, a social planner, a competitive market, and a monopolist would all offer a single product, but when demand is uncertain, a social planner, a...