Diversification is the traditional way farmers use to hedge against crop yield variations. However, most insurance policies and financial contracts do not take into account this strategy in their design. In this context, we develop a of portfolio insurance model based on area-yield crop indices....

This paper proposes a combination of participating and financial contracts in order to hedge catastrophic risk. Assuming unfair policies and the existence of a basis risk, we prove the optimal coverage is realized using: first, a participating contract, which covers the idiosyncratic part of the...

Purpose – The purpose of this paper is to examine a new insurance policy against natural disasters. Design/methodology/approach – The authors propose an optimisation model, which involves both the insurer and the farmer. The farmer decides to insure his farm if and only if insurance improves...

High losses generated by natural catastrophes reduce the availability of insurance. Among the ways to manage risk, the subscriptions of participating and non-participating contracts respectively permit to implement the two major principles in risk allocation: the mutuality and the transfer...

In Europe, economic evaluation of flood management projects is becoming a commonly used decision tool. At the same time, flood management policies shift towards new concepts such as giving more room to water by restoring floodplain and living with floods. Agricultural areas are particularly...

La méthode Inondabilité a été développée dans les années 1990 par le Cemagref pour disposer d'un outil d'évaluation du risque d'inondation à l'échelle du bassin versant et proposer un cadre de négociation sur la notion de risque acceptable. Elle repose sur l'idée d'exprimer aléa...

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...

In this paper, we focus on resource conservation in a model of decentralized management of groundwater and rainwater. We show that a conservation policy may have opposite effects on the level of the resource, depending on the outcome of the decentralized management. More precisely, we consider...

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...