The success of any groundwater management plan depends on user compliance. There is an intimate relationship between regulatory regimes and pumper perceptions. As well as its enforcement powers, an agency's behavior sends information to users. While enforcement power need not always be used to...

Das Konzept des Franchisings -- Die Modellierung von Dilemmastrukturen -- Die Entstehung von Kooperation -- Positive Analyse - Kausalität zwischen Dilemmastrukturen und Franchising -- Normative Analyse - Ethische Würdigung -- Ergebnisse und Ausblick.

This paper develops an expanded framework for social planning in which the existence of coercion is explicitly acknowledged. Key issues concern the precise definition of coercion for individuals and in the aggregate, its difference from redistribution, and its incorporation into normative...