This paper investigates the impacts of the current roaming rules on domestic competition and welfare. We consider a model for two countries in which each country has two operators that compete in the retail market for access services and also in the wholesale market for roaming. We first derive...

In this paper, we formulate and estimate a structural model of demand to analyse the equilibrium effect of the RAN sharing by using cross-country panel data in 28 EU countries in years 2010-2020. Based on model estimates, our simulation analysis in Spain firstly provides a quantitative...

In Europe, alternative network operators have rolled out own FTTH networks in numerous regions. They often realise first mover advantages and thus dispose (at least for some time) of superior infrastructures. In comparison to copper infrastructures of incumbent operators, most alternative...

Network neutrality regulations are intended to preserve the Internet as a non-discriminatory, public network and an open platform for innovation. Whereas the U.S. recently reversed its regulations, thus returning to a less strict regime, the EU has maintained its course and recently revised...

Der Ausbau gigabitfähiger Infrastrukturen ist eine zentrale Herausforderung der Gegenwart. Politische Ziele und Ausbaurealität fallen jedoch weit auseinander. In der vorliegenden Arbeit wird die Umsetzbarkeit verschiedener Handlungsoptionen untersucht, die die Investitionsbedingungen...

This paper investigates telecommunication operator investment in broadband infrastructure after local deregulation of the wholesale broadband access market. Using a panel dataset covering all 5,598 exchange areas in the United Kingdom, we exploit regional differences in deregulation following a...

This paper presents a basic framework to assess whether structural (vertical) separation is desirable. It is discussed within the setting of fixed telecommunications markets. From an economist's perspective, the key question that underlies the case for structural separation is: is there a...