In 2004 the Swiss Competition Commission (ComCo) opened an investigation concerning multilateral agreed interchange fees in the Swiss credit card market which ended with an amicable settlement. The most important element of this amicable settlement consists in the limitation of the interchange...

This paper reconsiders a widely used game of coalition formation in international environmental negotiations. Due to the mathematical problems of giving a full characterization of the solution, up to now most of the work on this subject rested on numerical simulations to derive results. In this...