Past attempts to generalise the Stolper-Samuelson Theorem have used a matrix of real income terms which is sufficient but not necessary to define a change in utility. In contrast, one can define a second matrix of terms which are necessary and sufficient for a change in indirect utility. Using...

This paper derives a family of multiple-output multiple-input production functions from the underlying technologies. These technologies are represented by average yield functions for each of the commodities (crops) produced from a common pool of resources. The production functions are implicitly...

The paper presents a model of choice between alternative available jobs in which each job has an uncertain multi-period income prospect. Imperfectly informed expectations as well as job preferences and attitudes to risk determine the choice. The model is used to locate and discuss some problems...

. Les barrières commerciales faussent la structure des échanges internationaux ; elles altèrent l'affectation des ressources productives et freinent la croissance économique. Leur coût économique total est estimé à plus de 475 milliards de dollars par an. . Une réforme partielle, comme...