This note is concerned with the effects of joint ownership of complements when they are vertically differentiated. We provide strong arguments for the positive nature of network integration among firms, while showing at the same time that, in some circumstances, anti-competitive consequences can...

Many high technology goods are based on standards that require access to several patents that are owned by different IP holders. We investigate the royalties chosen by IP holders under different market structures. Vertical integration of an IP holder and a downstream producer solves the double...

We examine a setting in which a vertically integrated provider (VIP) initially has a duty to deal with an independent rival at unregulated upstream and downstream prices. The duty to deal is subsequently terminated which enables the VIP to acquire the independent rival (or the expertise...