The 1990 Clean Air Act Amendments initiated the first large-scale use of the tradable permit approach to pollution control. The theoretical case for this approach rests on the assumption of an efficient market for emission rights. The authors' empirical analysis shows that the emission rights...

U.S. v. Microsoft and the related state suit filed in 1998 appear finally to have concluded. In a unanimous en banc decision issued in late June 2004, the D.C. Circuit Court of Appeals rejected challenges to the remedies approved by the District Court in November 2002. The wave of follow-on...

Welcome to the first issue of Competition Policy International. This inaugural volume begins with a colloquy about tying, an unsettled area in both economics and law.

Our Autumn 2007 issue of <i>Competition Policy International</i> features a truly international collection of antitrust experts from the Asia-Pacific region, the European Union, and the United States.

This paper provides a brief introduction to the economics of two-sided platforms and the implications for antitrust analysis.

Whose welfare should competition policy protect? That is the subject of the first two articles in our Autumn 2006 edition. The fact that a debate is even taking place over whether consumer or total (consumer plus producer) welfare is the right standard for competition policy is remarkable.