This paper presents a somewhat novel approach to explore the economic contribution of ecosystems. It develops linked models to capture connections between resource stocks and flows and the resulting micro and macroeconomic impacts. A bioeconomic model is developed that is imbedded into a...

This paper presents a case study in which the effects of traditional Mediterranean crop farming system of the Alentejo region of Portugal on environment are evaluated and benchmarked. With this objective a typical farm of the region using that traditional system based on a crop-rotation of durum...

En considerant que l'une des caracteristiques des problemes environnementaux est le niveau d'incertitude qui les accompagne, nous proposons d'etudier les effets de ces incertitudes sur les comportements de choix de portefeuille et d'epargne des agents. Nous montrons alors qu'a l'equilibre...

This paper presents an overlapping generations model of environmental externalities with a depollution technology. We show that if an agent is sufficiently risk averse, voluntary contribution is a decreasing function of average efficiency of depollution technology. If on the contrary, the...

Cet article etudie la question des permis de pollution dans le cadre d'un modele a generations imbriquees: la pollution resulte de l'utilisation de l'environnement dans le processus de production et constitue un externalite negative qui vient diminuer l'utilite des agents.

This study entails an environmental cost-benefit analysis of a private sector project, using the Kunda cement factory in Estonia as a case study.

Coral reefs may naturally flip between coral-dominated and algae-dominated states, when species' stocks trespass some threshold levels. This essay uses a stylized model of a coral reef to show how fishing may induce flips towards more algae-dominated states. Threshold effects have consequences...

There has been considerable recent interest in the valuation of ecosystem services. We focus here on the value of such services in the production of market goods. Although the conceptual basis for conducting such exercises is straightforward, the data with which to implement them empirically is...