The research is composed of the following stages: 1. Construct a Belgian agricultural and forestry sector specific econometric model based on a dynamic partial equilibrium common prototype model 2. Collect national data necessary for the national econometric model 3. Validate the national econometric model and generate projections ten years ahead. 4. Simulate agricultural policies and evaluate their impacts on ten years with the help of agricultural, forestry, food and environmental indicators. 5. Establish price relations between national models and the European composite model, itself put in relation with the world model 6. Communicate the results and their interpretation