This paper deals with the interactions between farmers who can choose between two water supplies (groundwater or rainwater) which are interdependent and have different productivities. Collecting rainwater reduces the amount of water that can replenish the aquifer and allows farmers to avoid 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...

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...

In this note, we propose a simple infinite horizon of elections with two candidates. We suppose that the government policy presents some degree of inertia, i.e. a new government cannot completely change the policy implemented by the incumbent. When the policy inertia is strong enough, no party...

We consider an industry where firms produce goods that have different quality levels but firms cannot differentiate themselves from rivals. In this situation, producing low-quality generates a negative externality on the whole industry. This is particularly true when consumers cannot identify...

In this article, we discuss the efforts made by importers of fresh produce within a voluntary programme on food safety. We show theoretically that the larger the firms the lower their efforts directed at food safety. We test this proposition using original primary data from a voluntary programme...

Abstract This paper investigates the reasons why African farmers differ in storage behavior and estab- lishes a causal link between farmers’ time and risk preferences and storage.We first provide a styl- ized onfarmstorage model inwhich impatience and risk aversion interact in the storage...

This paper examines the optimal environmental policy in a mixed oligopoly when pollution accumulates over time. Specifically, we assume quantity competition between several private firms and one partially privatized firm. The optimal emission tax is shown to be independent of the weight the...

We consider a model of non-renewable resource extraction where players do not know their opponents’ utility functions and form conjectures on the behavior of others. Two forms of beliefs are introduced, one based on the state of the resource, the other on this state and on the...