In the EU telecommunications regulatory framework a strong intention to avoid overregulation with respect to new markets can be observed. However, a clear-cut economically based analysis of the remaining need for sector-specific regu-lation is still missing. In this paper, the question is...

This paper aims at localizing network-specific market power in new markets. Three kinds of transmission qualities on service markets can be differentiated according to the products provided: narrowband services like PSTN/ISDN or GSM, semi high-speed broadband services like broadband internet...