Connaître la valeur de la biodiversité permettrait des choix de préservation plus efficaces. Pour cela il est utile de disposer de précisions quantitatives et/ou qualitatives sur l’objet « biodiversité ». On résume ici plusieurs littératures (écologie, biologie, sciences politiques...

Cet article passe en revue différentes méthodes pour mesurer la biodiversité et propose d’expliciter leurs fondements axiomatiques. Il offre ensuite un aperçu des concepts développés pour sa protection et il s’achève sur une discussion de quelques spécificités du problème, comme la...

Consider a developing country that has the potential for biodiversity conservation, and developed countries that benefit from biodiversity but are not in position to produce it. From the statu quo, some incremental protections of biodiversity would be harmful for the developing country but would...

The purpose of this paper is to explore whether international income transfers can improve or worsen the global level of biodiversity and global social welfare by changing the relative contributions to biodiversity protection and to agricultural production. Because of the public good nature of...

The purpose of this paper is to explore whether international income transfers can improve or worsen the global level of biodiversity and global social welfare by changing the relative contributions to biodiversity protection and to agricultural production. Because of the public good nature of...

The use of cost-benefit analysis (CBA) is increasingly advocated as a tool for supporting water planning decisions, in particular at the local (site) level. This paper questions whether CBA is relevant for evaluating groundwater management options at the scale of large regional aquifers. It...

Chekka Bay area and Amman Zarqa Basin are two complex river basins in northern Lebanon and northern Jordan respectively. Both regions are faced with growing populations, urban development and land-use changes. They also both suffer from water-resource scarcity and contrasted seasons that...

This paper analyzes the dynamic interaction between two regions with interconnected river basins. Precipitation is higher in one river-basin while water productivity is higher in the other. Water transfer increases productivity in the recipient basin, but may cause environmental damage in the...

Cooperation can increase the efficiency of commonly-owned renewable resource use. However, received knowledge is that, absent side payments, cooperative solutions are more difficult to achieve the less homogenous the agents involved. We revisit this claim by analyzing how differences in the...