Les modèles de simulation technico-economiques comme méthode d'analyse des différentes politiques agricoles

Facing new policy resulting from CAP reform, common management analysises, based on a complete entreprise development pattern rigidity, are mainly useless. Traditional economical tools are exposed to some limits. So, we purpose here, a methodology focusing onto linear programming associated to the plant growth simulation program Epic (Erosion Productivity Impact Calculator). Aim is to simulate productor behaviour : technical and economical adaptability facing various agricultural policy orientations. A first simulation has been drawn in cereal production farm in Beauce. Our concerns are to compare Mac Sharry reform effects with latest CAP system.