Die Rolle sogenannter Gatekeeper in der digitalen Medienwelt wird aktuell sowohl in Wissenschaftskreisen als auch Netz- und Medienpolitik vehement und kontrovers diskutiert. Gehen von den Gatekeepern der digitalen Welt wie Google, Apple, Youtube, Facebook, Twitter etc. besondere Gefahren fur den...

In this paper, we examine students' attitudes towards various allocation mechanisms for a scarce resource. For this purpose, we have run a survey among officers of the German military who are enrolled in different courses of study (such as economics) at the University of the German Federal Armed...

This paper provides a hedonic price analysis of mobile telephones for the German market. We have assembled data on 302 different handsets from 25 manufacturers over the period from May 1998 to November 2003. While volume has a negative effect on the price of a mobile handset, the number of...

This paper analyzes price elasticities in the Austrian market for mobile telecommunications services using data on firm specific tariffs. Both static and a dynamic panel data approaches lead to consistent results which provide evidence for a relatively elastic demand. Furthermore, some basic...

In this paper we provide an empirical analysis of German casino locations. Due to the "mercantilistic background" of casinos, we assume that casinos are more likely to be found at borders and tourist areas. Although the location decision has been made in the past, we use cross-sectional data at...

This paper analyses the interdependency between the market for music recordings and concert tickets, assuming that there are positive indirect network effects both from the record market to ticket sales for live performances and vice versa. Using a model with two interrelated Salop circles we...

This paper analyses the interdependency between the market for music recordings and concert tickets, assuming that there are positive indirect network effects both from the record market to ticket sales for live performances and vice versa. In a model with two interrelated Hotelling lines prices...

Das Internet ist stark durch Wettbewerb zwischen Plattformen geprägt, welche potenzielle Tauschpartner zusammenbringen. Die Konkurrenz zwischen solchen mehrseitigen Plattformen und die Marktkonzentration wird maßgeblich bestimmt durch (1) die Stärke der indirekten Netzeffekte, (2) das Ausmaß...

Während die Forschungs- und insbesondere die wissenschaftliche Publikationstätigkeit von Ökonomen Gegenstand zahlreicher systematischer Untersuchungen und Vergleiche ist, besteht zur Politikberatungstätigkeit häufig nur anekdotische Evidenz. Das ist nicht unproblematisch, denn es ist...