Contract design for improving membership commitment in French cooperatives

Diffusion du document : INRA Station d'Economie et Sociologie rurales 65 rue de Saint-Brieuc 35042 Rennes Cedex (FRA)Market deregulation and growing membership heterogenity affect the relationship between cooperatives and their members. We study, using a quantitative model, how French marketing cooperatives can develop for their members a set of contracts adapted to the environment. These contracts should maintain global membership commitment

RAE

v. : ill. ; 26 cm

Efficacité technique : une application à l'agriculture française

Diffusion du document : INRA Station d'Economie et Sociologie rurales 65 rue de Saint-Brieuc 35042 Rennes Cedex (FRA)International audienceL'existence des facteurs quasi-fixes conduit à définir des mesures d'efficacité techniques dans l'hyperplan des facteurs variables. Dans ce cas de figure, l'auteur montre que les scores d'efficacité sont inférieurs aux mesures radiales classiques et diminuent à mesure que s'accroît le nombre de facteurs quasi-fixes. L'application porte sur un échantillon d'exploitations céréalières françaises

On the usefulness of the directional distance function in analyzing environmental policy on manure management

The purpose of this paper is to model the manure management policy implemented in the European Union, and more specifically the limit imposed on the spreading of organic nitrogen. A theoretical model is defined in such a way that a number of specificities concerning livestock production can be introduced.The theoretical framework is used to investigate how the land can be shared out optimally between the non-productive purpose of spreading manure in a manner compliant with the environmental regulation and the productive function of providing crops.Then,we define an empirical model derived from the previous theoretical model, using the directional distance function.It provides a framework for deriving shadow prices of pollutant, of productive and non productive use of land and of the constraint on organic manure involved by the European environmental regulation

On the usefulness of the directional distance function in analyzing environmental policy on manure management

The purpose of this paper is to model the manure management policy implemented in the European Union, and more specifically the limit imposed on the spreading of organic nitrogen. A theoretical model is defined in such a way that a number of specificities concerning livestock production can be introduced.The theoretical framework is used to investigate how the land can be shared out optimally between the non-productive purpose of spreading manure in a manner compliant with the environmental regulation and the productive function of providing crops.Then,we define an empirical model derived from the previous theoretical model, using the directional distance function.It provides a framework for deriving shadow prices of pollutant, of productive and non productive use of land and of the constraint on organic manure involved by the European environmental regulation

On the usefulness of the directional distance function in analyzing environmental policy on manure management

The purpose of this paper is to model the manure management policy implemented in the European Union, and more specifically the limit imposed on the spreading of organic nitrogen. A theoretical model is defined in such a way that a number of specificities concerning livestock production can be introduced.The theoretical framework is used to investigate how the land can be shared out optimally between the non-productive purpose of spreading manure in a manner compliant with the environmental regulation and the productive function of providing crops.Then,we define an empirical model derived from the previous theoretical model, using the directional distance function.It provides a framework for deriving shadow prices of pollutant, of productive and non productive use of land and of the constraint on organic manure involved by the European environmental regulation

[Analyse des relations verticales entre des entreprises de semences et de biotechnologie]

International audienceLes auteurs développent un cadre théorique pour analyser la relation entre les semenciers et les firmes de biotechnologie dans le cas particulier de la commercialisation des organismes génétiquement modifiés. Les deux types de firmes sont liés verticalement : la firme de biotechnologie peut être considérée comme une firme amont qui détient un droit de propriété sur un caractère issu de la recherche en biotechnologie (i.e. un transgène) qui peut être intégré dans les variétés commercialisées par les semenciers en aval. La firme de biotechnologie a deux choix stratégiques importants à réaliser : premièrement, elle peut soit intégrer verticalement un semencier en aval ou rester indépendante en amont ; deuxièmement, elle peut accorder des licences sur le caractère qu'elle détient de manière exclusive ou non exclusive. Le semencier peut ou non accepter l'accord de licence proposé par la firme de biotechnologie, sachant qu'il pourra se maintenir sur le marché des semences s'il le refuse