We develop a model of international roaming in which mobile network operators (MNOs) compete both on the wholesale market to sell roaming services to foreign operators and on the retail market for subscribers. The operators own a network infrastructure only in their home country. To allow their...

This paper examines the consequences of introducing mobile number portability (MNP). As MNP allows consumers to keep their telephone number when switching providers, it reduces consumers’ switching costs. However, MNP may also cause consumer ignorance if telephone numbers no longer identify...

Satellite communication is integral to Digital India, enabling ubiquitous broadband for the uncovered population and supporting satellite TV, the dominant source of infotainment. An enabling policy environment would help increase the market share of Indian satellite service providers from the...

Despite still being younger than a decade, the theory of multisided market has offered numerous valuable insights for the analysis of industries in which a supplier serves two distinct customer groups that are indirectly interrelated by externalities. Examples include payment systems, matching...

Media markets recently have been identified as multisided markets. The application of the theory of multisided markets provides a better understanding of such markets. It enriched the hitherto economic approach and led to new insights and perspectives especially for the antitrust authorities...

Public Service Media (PSM) online is a highly up to date topic. There is no clear consensus among researchers if Public Service Media should have a legitimization online and if so to which extent. Some authors still demand for an extensive role of public service provision in the digital era...

Newspapers have been experiencing declining circulation figures and diminishing advertising revenues for several years - both effects might pose a threat to the continuing existence of (print) newspapers. In an earlier paper, Lindstädt & Budzinski (2011) argued from a theoretical viewpoint that...

Newspapers have experienced declining circulation figures and declining advertising revenues for several years. In particular, declining advertising figures put a threat on newspapers - this is especially severe in the US where 73% of their revenues are generated through advertising. On the...

We survey some of the literature on the effects of improved market transparency on competition in ologopoly. Generally, improved transparency from the perspective of irms makes detection of deviations from tacitly collusive agreements easier, thus facilitating oligopolistic coordination. On the...

We examine the effects of reorganizing electricity markets on ca- pacity investments, retail prices and welfare when demand is uncer- tain. We study the following market configurations: (i) integrated monopoly, (ii) integrated duopoly with wholesale trade, and (iii) sep- arated duopoly with...