Partial vertical integration is common in many telecommunication and media markets in Israel. That is, there are many cases in which the supplier of an input holds a partial (often controlling) stake in the input's customer (which we call the “distributor” for concreteness), or the...

Conventional wisdom presumes that a supplier in a monopolistic market, or in an oligopolistic market that is not perfectly competitive, has the power to charge a supra-competitive wholesale price. In contrast, elaborating on recent economics studies, this Article shows that the supplier of an...

We characterize the features of collusion involving retailers and their supplier, who engage in secret vertical contracts and all equally care about future profits (“vertical collusion”). We show such collusion is easier to sustain than collusion among retailers. The supplier pays retailers...

We characterize collusion involving secret vertical contracts between retailers and their supplier – who are all equally patient ("vertical collusion"). We show such collusion is easier to sustain than collusion among retailers. Furthermore, vertical collusion can solve the supplier's...

We consider infinitely repeated vertical relations when a retailer can sell an established product and a new product that is initially inferior but can improve over time. We find that the retailer has an incentive to sell the new product more than what maximizes industry profits. The...