Zusammenfassung Mit dem neuen Kreislaufwirtschaftsgesetz, das auf die Produktverantwortung von Produzenten und die Schließung von Stoffkreisläufen abstellt, nimmt die Bedeutung von Rücknahmeverpflichtungen als abfallwirtschaftliches Instrument zu. In der vorliegenden Arbeit wird der...

We develop a turnpike theory for a class of dynamic general equilibrium models where total demand function satisfy monotonicity conditions. As special cases, we receive well known results about asymptotic behavior of optimal paths.

Marine pollution associated with shipping accidents has resulted in a Congressional mandate for double hulls on tankers in U.S. waters. In this paper, we formulate a social planner's problem using optimal control theory to examine the relative cost-effectiveness of double hulls and alternative...

Learning is often perceived as a cost-reducing endogenous by-product of production processes. In many applications this by-product is modeled as a learning curve; that is, a simple function of time or of cumulative production experience. In an earlier paper we presented an alternative explanation...