[fre] Un modèle d'enchères de bois sur pied par Bernard Elyakime et Patrice Loisel . Les bois sur pied sont souvent vendus en France par enchères avec prix de retrait secret dans lesquelles le produit est mal défini quant à son volume. Nous étudions un modèle en valeur privée...

In this paper we consider a first-price sealed bid auction with a secret reservation price. Such auctions are used frequently in France to sell timber. Within the independent private values paradigm, we show that the equilibrium strategy of the seller is to choose a reservation price equal to...

We study contracts designed to remunerate a farmer for the production of an ecosystem service with the payment dependent on the results of the farmer’s actions and on weather conditions. Two contracts are proposed: the first takes into account both the results of the farmer’s actions and a...

In many developed countries, the share of permanent hired labour in the total agricultural labour force has been increasing in recent years. Using data from the 1988 and 2000 agricultural censuses in France, we analyse the factors that influence households' decisions regarding the use of hired...

In many developed countries, the share of permanent hired labour in the total agricultural labour force has been increasing in recent years. Using data from the 1988 and 2000 agricultural censuses in France, we analyse the factors that influence households' decisions regarding the use of hired...

We first give a typology, according to the various agricultural sectors, of agricultural precarious labour and we then specify the relationships between these jobs and the employment provided by pools of employers, farm equipment co-operatives or farm work companies. We can then analyze the...

[fre] Si l'érosion, due à l'eau, sur les parcelles agricoles de versant du Sud-Ouest de la France, dans le Lauragais (Midi-Pyrénées), est bien réelle et occasionne des dégâts sur les équipements collectifs et sur les cultures, elle est rarement combattue. Au contraire, les évolutions de...

[fre] Asymétrie dans des enchères à prix de retrait secret. . Les bois sont le plus souvent vendus en France par enchères avec prix de retrait secret. Celles-ci peuvent être raisonnablement modélisées dans le cadre de la valeur privée. Avec des acheteurs supposés symétriques, le...

Vis-a-vis the increasing of part-time wage labour in agricultural pool of employers, we study this structure to make more attractive the employee?s payment: conditions of an inciting payment of the wage workers. In the pool, the exogenous weight of each employer is then a significant parameter:...