This paper summarizes the peculiarities of online markets and discusses recent antitrust cases related to online markets. Following a brief description of the online markets' characteristics and potential tendencies for concentration the paper first discusses the antitrust allegations and...

Abstract: Die deutsche Telekommunikationspolitik hat in den letzten 15 Jahren vor allem durch angebotsseitige De- und Re-Regulierung viel erreicht: Drastisch sinkende Preise, zusätzliche Auswahl für Verbraucher, abnehmende Marktkonzentrationen, innovative Dienste und neue Netze kennzeichnen...

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...

Abstract: Die Autoren analysieren den Ordnungsrahmen für den deutschen Apothekenmarkt und die dortigen Konkurrenzbeziehungen. Diese zeichnen sich durch signifikante Wettbewerbsdefizite aus. Ausgehend von dieser Diagnose wird als Therapie das Modell einer Apothekentaxe vorgeschlagen, bei dem die...

Relocation of production to countries with low labour cost have induced increased labour market flexibility, which has been praised as a silver bullet for economic growth and low unemployment. Within a unionised oligopoly framework, in which a multi-national firm has the option to relocate its...

This paper estimates demand elasticities for the Turkish mobile telecommunication market. In contrast to most other studies, firm level data is used to estimate dynamic panel data models including instrumental variable techniques. Both short- and long-run elasticities are calculated, yielding a...

This paper explores the effects that collusion can have in newspaper markets where firms compete for advertising as well as for readership. We compare three modes of competition: i) competition in the advertising and the reader market, ii) semi-collusion over advertising (with competition in the...

The German reserve power market was subject to important regulatory changes in recent years. A new market design was created by synchronization and interconnection of the four control areas. In this paper, we analyze whether or not the reforms led to lower prices for minute reserve power (MRP)....