Abstract AbstractDie Festschrift für Jörn Kruse enthält Beiträge aus den Bereichen Medien- und Telekommunikationsökonomik, Wettbewerbspolitik, Sportökonomik, Energiepolitik sowie allgemeine Fragen der Wirtschafts- und Ordnungspolitik. Sie reflektieren nicht nur den breiten Schaffenskreis...

This paper provides an empirical analysis how tariff diversity affects broadband uptake, utilizing a new data set with 1497 fixed-line and 2158 mobile broadband tariffs from 91 countries across the globe. An instrumental variable approach is applied to estimate the demand for fixed broadband...

Given various recent antitrust investigations on the retail sector, we deal with uncovering demand systems substitution patterns for a particular market (diapers) to investigate the inter-format competition (supermarkets vs. discounters vs. drugstores). Using the uncovered demand system we...

This paper provides an empirical analysis how tariff diversity aspects fixed-line broad-band uptake, utilizing a new data set with 1497 fixed-line and 2158 mobile broad-band tariffs from 91 countries across the globe. An instrumental variable approach is applied to estimate demand, controlling...

The promotion of competition in Europe's network industries has been in the foreground of economic policy in recent years. Network industries have undergone dramatic changes, involving privatisation, liberalisation and de- as well as re-regulation. But there are still many unresolved problems in...