This paper presents results from a calibrated welfare model of the UK mobile telephony market which includes many mobile networks; calls to and from the fixed network; networkbased price discrimination; and call externalities. The analysis focuses on the short-run effects of adopting lower...

Electricity transmission has become the pivotal industry segment for electricity restructuring. Yet, little is known about the shape of transmission cost functions. Reasons for this can be a lack of consensus about the definition of transmission output and the complexitity of the relationship...

This paper discusses the development of local loop unbundling in telecommunications markets throughout the European Union. It elaborates on the regulatory framework in Europe and provides an overview of recent experiences in Europe. Different types of unbundling, allowing for different types of...

This paper discusses the development of local loop unbundling in telecommunications markets throughout the European Union. It elaborates on the regulatory framework in Europe and provides an overview of recent experiences in Europe. Different types of unbundling, allowing for different types of...

We analyze the role of different contract types and access regulation on innovation and competition in telecommunications in the context of Next Generation Access Networks. Within a standard duopoly model, we show that ex-post access contracts lead less often to the duplication of investment,...