While most user studies on mobile telecommunications focus on adoption of services, preferences in the use of data networks has hardly been studied. In this paper, we analyse data collected directly on smartphones to study preferences of users between cellular and WiFi networks. Moreover, we...

Price concentration studies investigate the relationship between market concentration and price levels. They are increasingly used in the mobile telecom industry. This paper provides a detailed account of the limitations of such studies. In addition, it proposes a specific approach in order to...