In this paper we study an entrant's incentives to build a network infrastructure, when there is an initial phase of service-based competition where it leases access to the incumbent's infrastructure. We build a model in which the phase of service-based competition allows the entrant to step into...

This paper considers a model of two interconnected networks with different qualities. There are call externalities in the sense that consumers value calls they send and receive. Networks compete in two part tariffs. We show that call externalities create private incentives for each competitor to...

In a digital economy which is increasingly becoming an information and attention-based economy, search engines are occupying a central role shaped by the symbolic status of Google both in terms of its renown and its dominance of internet traffic. Despite their importance, economic models and...