[eng] For the vast majority of professional economists, it is quite natural to think of the elasticity of supply with respect to price as being positive. The same idea is a matter of controversis among agricultural economists. Often, it is alleged that the rationality is radically different for...

[eng] Markets, incomes, expectations : agricultural supply dynamics . In order to justify agricultural income support, current rhetoric insists on equity considerations. Yet, one does not see any reason to be more equitable with respect to farmers than to any other category. By contrast,...

[fre] Voici déjà quelques décennies que des modèles d'équilibre général sont utilisés comme des arguments en faveur de la libéralisation dans les instances internationales qui discutent du commerce, en particulier le commerce des denrées alimentaires. On peut cependant se demander si...