Abstract 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...

This paper provides a hedonic price analysis of mobile telephones for the German market, based on data of 302 different handsets from 25 manufacturers over the period from May 1998 to November 2003. By measuring shadow prices for different product characteristics, the authors find that volume,...

This paper explores how consumers react towards price differentiation between on-net and off-net calls in mobile telecommunications - a pricing policy that is common in many mobile telecommunications markets. Based on a survey of 1044 students it is demonstrated that some consumers may suffer...

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...

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...

Economists praise the efficiency of the price mechanism in allocating scarce resources. Others, however, often reject it as unfair. In this study, we investigate the extent to which economists also differ from non-economists in how they value the fairness of the price system, and examine how...

This paper summarizes the economic principles of European state aid control. We start with a discussion of the economic justification for state aid control, including the definition of state aid in European law and exceptions to the general ban of state aid. We then explore the motives for...

This article summarises some of the most important works of Jean Tirole, the first economist in more than 30 years — following George Stigler in 1982 — to win the Nobel Prize for his work in industrial economics. The article argues that Jean Tirole has revolutionised the field of industrial...