The internet giants - Facebook, Amazon, Netflix and Google, among others - have transformed society with both positive and negative effects. The negative effects have been stark. There have been huge disruptions caused by e-commerce. More recently, subtler, but even more serious negative effects...

Three decade ago, federal policymakers - Republicans and Democrats - embarked on a general strategy of deregulation in the electricity, gas delivery, and telecommunications industries. The strategy called for restructuring to separate production from the transmission and distribution, followed...

Mobile telephony is described as a two-sided market where customers are seen as senders and receivers of communications that are mutually beneficial both to callers and receivers. This has implications in terms of market definition and market power. The economics of mobile call termination is...

In this paper, we address the issue of the appropriate market structure in European mobile markets by presenting empirical evidence on the effect of the number of MNO on investment. Using a structural entry model based on a country-level dataset of 28 European countries, we find that, in average...

Central features of today’s electronic communications markets are complementarities between the different layers of the value chain, substitutability between some applications, network effects in the provision of content and services, two-sided business models that partly involve indirect...

This study examines the effects of media market structure on consumer demand and welfare. A differentiated-product model is used to estimate demand for the local media environment, described by the offerings from newspapers, radio, television, the Internet and Smartphone. Results show that the...

We test the effect of entry on the tariff choices of incumbent cellular firms. We relate the change in the breadth of calling plans between 1996, when incumbents enjoyed a duopoly market, and 1998, when incumbents faced increased competition from personal communications services (PCS) firms....

We present a Cournot model that compares the critical threshold of collusion in Duopoly and Oligopoly Markets where the actors are private, mixed or public. We assume that the incentive critical threshold for collusion depends on the interconnection fees. The different threshold values...

We develop models of bilateral oligopoly with two-way traffic exchanges to study the impact of competition and government regulatory policies on the international telephone markets. When carriers in each country are required to act collectively in setting a uniform settlement rate for inbound...

We test the effect of entry on the tariff choices of incumbent cellular firms. We relate the change in the breadth of calling plans between 1996, when incumbents enjoyed a duopoly market, and 1998, when incumbents faced increased competition from personal communications services (PCS) firms....