Biodiversity is an important environmental public good. However, the literature suggests that it is not clear how its economic value should be estimated; there is no established framework for doing this. This paper summarises concepts of biodiversity value from the ecological and economic...

Biodiversity provides essential services to human societies. Many of these services are provided as public goods, so that they will typically be underprovided both by market mechanisms (because of the impossibility of excluding non-payers from using the services) and by government-run systems...

Die schnelle Entwicklung des Informationsmediums Internet bietet Online-Zeitungen ein hohes Wachstumspotenzial. Allerdings können die bisher meist kostenlosen Online-Zeitungen allein durch Werbeeinnahmen kaum profitabel gestaltet werden. Timo Schulze untersucht, wie optimale Nutzungspreise für...