test (1) papier (1) modèle (1) marché (1) décision (1) vecteur (1) bétail (bovins) (1) abords (agglomération) (1) Brésil (1) Derivatives (1) Futures market (1) Futures (1) Prices (1) Paper (1) Markets (1) Hypothesis (1) Forecasting (1) Exchange (1) Example (1) Evidence (1) Error (1) Equilibrium (1) Discrimination (1) Cent (1) Cattle (1) Beef cattle (1) Beef (1) Argentines (1) Spot prices (1) Prices (1)