Triggered by the concentration process in the electricity and gas markets, the land of Hesse proposes to give the German cartel office power to divest dominant firms or oligopolies if this is necessary to restore competition. The paper shows that the reform would be in line with constitutional...

Despite the major concern of the competition authority to forbid and prosecute formal cartels who cooperatively fix prices, limit production or divide markets, there seems to be little regulation and investigation of collusive practices in the labor market. For that reason, this article analyzes...

We study the effects of cooperative wage setting in industries that use two different types of labor. In particular, we consider a two-stage game where firms hire non-specialized workers in a perfectly competitive labor market and specialized workers that are more productive and expensive, but...

While competition between firms producing substitutes is well understood, less is known about rivalry between complementors. We study the interaction between firms in markets with one-way essential complements. One good is essential to the use of the other but not vice versa, as arises with an...

I present the following proposal: information revealed during non-cartel investigations by competition law enforcement authorities, such as evaluation of M&As or investigation of monopolization (dominance) conduct, should be directly used to investigate and prosecute cartels. Currently, in...

In this paper, we discuss from an economic perspective two alternative views of restrictions of competition by sports associations. The horizontal approach views such restrictions as an agreement among the participants of a sports league with the sports association merely representing an...

We test whether firms use incompatibility strategically, using data from ATM markets. High ATM fees degrade the value of competitors' deposit accounts, and can in principle serve as a mechanism for siphoning depositors away from competitors or for creating deposit account differentiation. Our...

This paper contains an economic and legal analysis of the lawsuit Microsoft vs. U.S. Department of Justice beginning with the District Court's decision on June 7, 2000 up to the Proposed Final Judgement on November 6, 2001. I found that the courts' underlying economic paradigm regarding the...

This paper discusses ways of strengthening the competitive environment in order to help boost productivity performance in various sectors of the Danish economy. It looks at a number of indicators of the strength of competition — including price levels, industrial concentration and product...

Vigorous product market competition plays a central role in bolstering productivity growth. Sweden has strengthened competition legislation and deregulated a number of sectors, including electricity, telecommunications and parts of transport, over the past 10 to 15 years. This paper examines the...