[Liberalization of the milk quota trade: Purchasing or selling?]

achat aptitud lechera besoin en main d'oeuvre bovin laitier compra contingent de production cost analysis cow milk dairy cattle dairy cows demanda de trabajo exploitation agricole explotaciones agrarias farms ganado de leche labour requirements lait de vache leche de vaca milk performance milk production new laender nouveaux laender nuevos laender production controls production quota purchasing sales vacas lecheras ventas vente