Primary commodities (2) Rural population (2) Raw materials (2) Markets (2) Cities and towns (2) Science (2) Rural conditions (2) Población rural (2) Condiciones rurales (2) Ciencias (2) Mercados (2) Materias primas (2) Publics (2) Population rurale (2) Matières premières (2) Marchés (2) Conditions rurales (2) Villes (2) Sciences (2) Ouest (1) Dynamics (1) City dwellers (1) Male actors (1) Rice (1) Production (Economic theory) (1) Necessity (Philosophy) (1) Manufactures (1) Literature (1) Households (1) Grain as feed (1)