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...

Forests emit and absorb carbon. Although the portion of anthropic climate change that can be attributed to forestry activities and land use is small relative to the contribution of fossil fuels consumption, it is by no mean negligible. The role that the forest may play as a sink or a source of...

This paper investigates whether the risk faced by rural farmers in Zimbabwe could potentially be managed by using community-based wildlife conservation. Community-based wildlife conservation could be an additional asset in the rural farmers. investment portfolio thereby potentially diversifying...

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...

In this paper we analyse interregional freight transport movements in Europe with a view on new spatial patterns based on transport economic scenarios for environmental sustainability. Two different approaches are compared. viz. the logit model and the neural network model. The paper will...

It is possible to make a current valuation of the effects of carbon dioxide which tracks a valuation done under the metric of expected present value and also tracks realized values. The implementation of a carbon credit scheme based on green accounting could go as follows: 1) At dates strictly...

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...