The author analyzes the optimal investment in environmental protection in a model of an infinite series of non-overlapping hyperbolically discounting agents. He shows that without a commitment mechanism society is eventually stuck in a situation where all agents prefer further investment in the...

Im Rückgriff auf die Innovationsforschung wird ein Ansatz für eine gemeinsame Sprache und eine konsistente Systematik für Innovationen im Umweltbereich entwickelt. Dazu werden einige allgemeine Begriffsdefinitionen der Innovationsforschung erläutert, der Begriff Umweltinnovation eingeführt...

Production often causes pollution as a by-product. Once pollution problems become too severe, regulation is introduced by political authorities which forces the economy to make a transition to cleaner production processes. We model this transition as a change in general purpose technology (GPT)...

The paper examines the determinants that influence the environmental innovation behaviour of companies in Germany in a multivariate context by using data from the Mannheimer Innovations Panel 1993, which was part of the Community Innovation Survey. The objective is to analyse the general...

Die vergleichende Analyse umweltpolitischer Instrumente kommt regelmäßig zu dem Ergebnis, dass Emissionsabgaben einen höheren Innovationsanreiz auslösen als Emissionsauflagen. Demgegenüber weisen neuere Studien der empirischen Innovationsforschung auf keine eindeutige Rangfolge zwischen den...

We analyze a model where firms chose a production technology which, together with some random event, determines the final emission level. We consider the coexistence of two alternative technologies: a "clean" technology, and a "dirty" technology. The environmental regulation is based on taxes...

We analyze the effects of socially responsible investment and public abatement on environmental quality and the economy in a continuous-time dynamic growth model featuring optimizing households and firms. Environmental quality is modelled as a renewable resource. Consumers can invest in...