Heffer, Jean - In: Histoire, économie & société 5 (1986) 2, pp. 265-295
cereals. They ruled the world market of wheat. One can explain this situation by supply and demand conditions. On the supply … demand side, human and animal consumptions are analyzed, as well as exportations, stores and the world prices, according to … the Meinken transformed model. Econometric estimations give a more precise notion of various elasticities and give ann …