L’utilisation de pesticides et l’introduction de variétés résistantes à certains bioagresseurs (insectes, champignons, virus, bactéries) en agriculture exercent une pression de sélection sur ces populations de bioagresseurs. Au cours du temps, l’efficacité de ces technologies peut...

Nous testons en laboratoire trois instruments destinés à réguler l’exploitation d’une ressource commune par des agents hétérogènes : un système de taxes et de subventions, des quotas individuels transférables et non transférables. Nous proposons un modèle dans lequel l’objectif...

La protection de l’environnement se fait-elle automatiquement au détriment de la rentabilité des entreprises ? Cet article tend à démontrer que performance environnementale et économique ne sont pas toujours substituts mais peuvent être complémentaires pour l’entreprise. À travers...

We analyze the interaction between a reliable source of electricity production and intermittent sources such as wind or solar power. We first characterize the optimal energy mix, emphasizing the availability of the intermittent source as a major parameter for the optimal investment in capacity....

We consider the decentralized provision of a global public good with local external- ities in a spatially explicit model. Communities decide on the location of a facility that benefits everyone but exhibits costs to the host and its neighbors. They share the costs through transfers. We examine...

In a laboratory experiment we test three regulations imposed on a common-pool resource game with heterogeneous users: an access fee and subsidy scheme, transferable quotas and non-transferable quotas. We calibrate the game so that all regulations improve users’ profits compared to free-access...

We examine the choice of policy instruments (price, quantity or a mix of the two) when two pollutants are regulated and firms' abatement costs are private information. Whether abatement efforts are complements or substitutes is key determining the choice of policies. When pollutants are...

We analyze the spatial distribution of genetically modified (GM) and organic crops. Because some organic crops will likely be contaminated by GM crops, not all of the non- GM crops can be sold as organic. Therefore, the choice of producing organic crops will depend on the surrounding crops. When...

[eng] We conduct a laboratory experiment to test three regulations imposed on a common-pool resource game : an access fee and subsidy system, transferable quotas , and non-transferable quotas. Theory predicts that they all reduce resource use from free access to the same target level without...