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....

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....

This paper studies competition in the German market for mobile telecommunications, motivated by recent suggestions that T-Mobile and Vodafone possess a position of collective dominance. Allegedly, their position of joint dominance is secured through a combination of first-mover advantages and...

Mit der zum 1. Dezember 2021 in Kraft getretenen Novelle des Telekommunikationsgesetzes (TKG) ist der Vorrang der Versteigerung als Regelvergabeverfahren für Frequenzen bei Knappheit aufgehoben worden. Das TKG sieht zwei mögliche Vergabeverfahren für Frequenzen bei Knappheit vor: die...

This paper studies competition in the German market for mobile telecommunications, motivated by recent suggestions that T-Mobile and Vodafone possess a position of collective dominance. Allegedly, their position of joint dominance is secured through a combination of first-mover advantages and...

This article examines the effect of access obligation on mobile network investment. Access obligation is a form of regulated network access in wholesale markets that commits MNOs to grant non-discriminatory access to MVNOs. While it is often claimed that such regulation might lower investment...

As part of the 2019 frequency allocation process for mobile communications, the Federal Network Agency required network providers to achieve a certain level of mobile network coverage for the population. Cooperation between different network providers was also permitted for the first time,...

This paper provides an insight into the antitrust investigation initiated by the French competition authority, which found that mobile operators exchanged strategic information and agreed to fix market shares in years the 2000-2002. The empirical analysis is based on the comparison of mobile...

Mit der zum 1. Dezember 2021 in Kraft getretenen Novelle des Telekommunikationsgesetzes (TKG) ist der Vorrang der Versteigerung als Regelvergabeverfahren für Frequenzen bei Knappheit aufgehoben worden. Das TKG sieht zwei mögliche Vergabeverfahren für Frequenzen bei Knappheit vor: die...

The geographical definition of markets is a crucial challenge for economists. With the availability of multiple tools to compare prices, the idea of market definition is entering a new era as it infiltrates the digital sphere. Since December 1st, 2013 the market transparency unit of the Federal...