The increasing usage of mobile communication and the declining demand for fixed line telephony in Europe make the analysis of substitutional effects between fixed and mobile networks a key aspect for future telecommunication regulation. Using a unique dataset which contains information on all 27...

Die Mobilfunkversorgung in Deutschland ist seit geraumer Zeit ein wiederkehrendes Thema in der Presse und Gegenstand kontroverser politischer und fachlicher Diskussionen. Trotz relativ hoher Bevölkerungsdichte und wirtschaftlichen Wohlstands liegt Deutschland im europäischen Verglich nur im...

International mobile roaming cartel agreements prompted the EU to intervene, firstly encompassing competition law measures by a cartel exemption, then ini-tiating several competition proceedings based on the accusation of abuse of a dominant market position, and finally applying price...

In 2000, there were as many countries served by a single mobile network as by network competition. Today, only 30 countries, representing less than 3% of the world’s population, are served by a single network. There has been considerable discussion about the optimal number of network operators...