Der vorliegende Aufsatz untersucht die Auswirkungen der von einigen Mineralölunternehmen gewährten Preisgarantien auf die Benzinpreise. Auf Grundlagen der Daten der Marktransparenzstelle des Bundeskartellamtes wurde anhand einer Differenz-von-Differenzen Analyse untersucht, ob die insbesondere...

Krankenkassen sollen in einer Solidarischen Wettbewerbsordnung als Unternehmen selektivvertragliche Bindungen zum Angebot von Optionstarifen nutzen. Dies sichert ihnen Steuerungsmöglichkeiten und eine echte Mittlerfunktion. Sie sind einer umfassenden Kartellaufsicht und entsprechender...

We analyze the pass-through of cost changes to retail tariffs in the German electricity market over the 2007 to 2014 period. We find an average pass-through rate of around 60%, which significantly varies with demand factors: while the pass-through rate to baseline tariffs, where firms have...

This paper analyses price structures in the liberalized German market for long-distance telecommunications services. Theoretically deduced patterns are backed-up by empirical observations. The market is exceptionally competitive; entry is taking place on a large scale and prices are falling...

Mobile telecommunication operators routinely charge subscribers lower prices for calls on their own network than for calls to other networks (on-net discounts). Studies on tariff-mediated network effects suggest this is due to large operators using on-net discounts to damage smaller rivals....

Economic theory provides ambiguous and conflicting predictions about the association between algorithmic pricing and competition. In this paper we provide the first empirical analysis of this relationship. We study Germany's retail gasoline market where algorithmic-pricing software became widely...