We study the implementation of reasonably efficient operator margin squeeze tests by National Regulatory Authorities in European telecommunications markets. We provide a theoretical framework in which we show how regulatory authorities deal with the asymmetries between the entrants and the...

In this paper, we examine welfare implications of switching from a neutrality regime to a network management regime. While in the former a network provider or an integrated ISP should transmit data with a-bit-is-a-bit principle, in the latter it is allowed to differentiate its connection quality...

This paper analyzes empirically whether and if so to what extent later entrants in the European mobile telephony industry have a disadvantage vis-à-vis incumbents and early mover entrants. To analyze this question a dynamic model of market share development and a series of static models are...

Network operators of competing infrastructures in European electronic communications markets face asymmetric regulation: incumbent telecommunications firms are required to open their networks for retail broadband competition, while cable companies have no such obligation. Furthermore, for...

This paper examines liberalization of the basic telecommunications sector in a number of Asian countries and the role of the General Agreement on Trade in Services (GATS) in this process. It begins by explaining the working of the GATS as a mechanism for multilateral liberalization efforts. It...

Die Liberalisierung und Regulierung der Telekommunikationsmärkte in Deutschland ist trotz einiger Widrigkeiten als großer Erfolg zu bezeichnen. Verbrauchern stehen, im Gegensatz zu den Zeiten des staatlichen Monopols, preisgünstige und innovative Produkte zur Verfügung. Im Zentrum der...

Der Telekommunikationsmarkt hat sich zu einem äußerst dynamischen, innovationsund technologiegetriebenen Markt entwickelt. Die Lebenszyklen der Telekommunikationstechnik sind heute vergleichsweise kurz, die Technik entwickelt sich zunehmend in Sprüngen weiter. Der Ende der 90er Jahre...

We study the impact of the access charges of copper and fiber unbundling on an incumbent's incentives to invest in fiber access networks. Once the fiber deployment is in place, the incumbent and the entrant compete for consumers in both copper and fiber markets. We show that when the regulator...

This paper aims to investigate the main determinants of Telecommunications demand for European countries (EU). For this reason, a panel data set is used consisting of 19 EU countries over the period 1991-2010 capturing the years before and after the liberalization process. The goal is to clarify...

Applications such as iMessage, KakaoTalk, LINE, Signal, Skype, Snapchat, Threema, Viber, WhatsApp and WeChat have become an increasingly popular means of personal and business interaction. Surprisingly little academic effort has gone into understanding the nature and origin of these...