[The public intervention in the Argentinian agriculture. A cereal and oleaginous market analysis]

agricoltura agricultura agriculture argentina argentine barreras comerciales barriere commerciali cereales cereali cereals colture oleaginose comercio internacional commerce international commercio internazionale commodity markets econometric models economic analysis esportazioni exportaciones exportation exports gatt international trade intervento statale mercati delle merci modelli econometrici oil crops plantas oleaginosas state intervention trade barriers