Das Buchanan-Kooperationsmodell der voluntary provision of public goods wird in diesem Beitrag formalisiert und auf den Fall eines reichen und eines armen Akteurs angewandt. Hinsichtlich der Nutzenfunktionen der Akteure werden zwei unterschiedliche Szenarienanalysiert: Während im...

Currently informal and formal international negotiations on climate change take place in an intensive way since the Kyoto Protocol expires already in 2012. A post-Kyoto regulation to combat global warming is not yet stipulated. Due to rapidly increasing greenhouse gas emission levels,...

Before 2004 South Africa was the dominant steam coal exporter to the European market. However a new market situation with rising global demand and prices makes room for a new entrant: Russia. The hypothesis investigated in this paper is that the three incumbent dominant firms located in South...