[Development of changes in customer demand for foods]

alimentos budget familial carne cereales cereals comercio exterior comportamiento del consumidor comportement alimentaire comportement du consommateur consommation alimentaire consumer behaviour consumer surveys consumo de alimentos czech republic encuestas al consumidor family budget feeding habits food consumption foods foreign trade fruits frutas hortalizas lait leche legume meat milk oferta y demanda offre et demande opinion publique precios presupuesto familiar prices prix produit alimentaire public opinion public research recherche publique subsidies subsidios subvention supply balance vegetables viande