Die Wirtschaftswissenschaften werden in der Öffentlichkeit als realitätsfern kritisiert. Welche Vorwürfe werden dabei im Einzelnen erhoben? Beschränkt sich die Ökonomie auf das Ziel der Gewinnmaximierung? Funktioniert der Marktmechanismus nur unter restriktiven Bedingungen? Ist die...

The response of a monopolistic polluter to the imposition of an emission tax and its welfare implications are examined. The cases of output reduction as the sole means for pollution control and of additional means being feasible are considered. It turns out that in the second case the tax may...

Effluent charges are discussed as a means for reducing pollution. In a comparative static model, the long run adjustment of a perfectly competitive industry to a change in the effluent charge rate is analyzed. The industry is assumed to have a flexible pollution abatement technology. It turns...

H. Demsetz claimed that under certain conditions private firms can supply public goods efficiently. Recently, it was argued that the optimality of the Demsetz equilibrium is destroyed when consumers engage in fraudulent behavior. In this paper, fraudulence is explicitly introduced in the Demsetz...