Diskussionsbeiträge // Institut für Verkehrswissenschaft und Regionalpolitik 129 [rev.]
Regulatory reforms in European network industries are strongly influenced by legal decisions. The cases considered in this paper not only initiated the liberali-zation process of the markets for network services but also provided an impor-tant signaling function for the remaining regulatory problems: localization of network-specific market power, abolishment of grandfathering rights, ex ante regulation of network-specific market power instead of negotiated unregulated network access, incentive regulation instead of cost-based regulation. The process towards sector-symmetric market power regulation based on economi-cally founded principles gains increasing relevance. Nevertheless, there are fur-ther reform potentials to be exhausted in the future.