We consider a simple two period model where consumers have different switching costs. Before the market opens, there was an incumbent who sold to all consumers. We identify the equilibrium both with Stackelberg and Bertrand competition and show how the presence of low switching cost consumers...

A code is a technical language that members of an organization learn in order to communicate among themselves and with members of other organizations. What are the features of an optimal code and how does it interact with the characteristics of the organization? This Paper develops a simple...

This paper studies the impact of legal unbundling vs ownership unbundling on the incentives of a network operator to invest and maintain its assets. We consider an industry where the upstream firm first chooses the size of a network, while several downstream firms then compete in selling goods...