This paper studies an industry in which firms can choose to provide open or closed platforms. Open platforms, as opposed to closed, are extendable so third-party producers can develop extensions for them. Building on a two-sided market model, I show that firms might prefer to commit to keeping...

This paper studies an industry where firms can choose to provide open or closed platforms. Open, as opposed to closed, platforms are extendable so that third-party producers can develop extensions for them. Building on a two-sided market model, I show that firms might prefer to commit to keeping...

This paper investigates the competition between vertically differentiated platforms in two-sided markets. We assume the presence of two competing platforms producing either higher- or lower-quality devices for consumers. Each platform decides the price of its hardware device for consumers and...

This study investigates the role of exclusive content provision in two-sided markets where both sides are allowed to join multiple platforms. We consider a model of duopolistic two-sided platform market with a monopolistic multi-product (content) firm on one side, and consumers on the other. The...

We compare a discriminatory pricing regime with a non-discriminatory regime in a competitive bottleneck model where content providers endogenously sort into single or multi-homers. We find that consumer prices rise when the share of single-homers increases in the non-discriminatory case, while...

Customer markets are characterized by long-term relations between buyers and sellers. Long-term relations evolve if buyers trust sellers to provide high quality and if sellers are trustworthy. However, changes in the terms of this implicit contract may antagonize customers and disrupt the...

Customer markets are characterized by long-term relationships between buyers and sellers that evolve if buyers trust sellers to provide high quality and if sellers are trustworthy. However, changes in the terms of this implicit contract may antagonize customers and disrupt the relationship. We...

This paper examines empirically the role of market structure for the influence of spill-over effects on R&D-cooperations. The results of a microeconometric analysis, based on firm data on innovation, let in general presume that with intensified competition also the influence of spillovers on...

We develop a model for two-sided markets with consumers and producers, who interact through a platform. Typical settings for the model are the market for smartphones with phone users, app producers, and smartphone operating systems; or the video game market with game players, video game...

Online platforms, such as Google, Facebook, or Amazon, are constantly expanding their activities, while increasing the overlap in their service offering. In this paper, we study the scope and overlap of online platforms' activities, when they are endogenously determined. We model an expansion...