Existence and Nash implementation of efficient sharing rules for a commonly owned technology

Suppose that a group of individuals owns collectively a technology which produces a consumption good by means of a (possibly heterogeneous) input. A sharing rule associates input contributions with a vector of consumptions that are technologically feasible. We show that the set of allocations obtained by any continuous sharing rule contains Pareto efficient allocations. We also present a mechanism that implements in Nash equilibrium the Pareto efficient allocations contained in an arbitrary sharing rule. Received: 29 June 1998/Accepted: 15 November 2000     

International and intercultural issues in English teaching textbooks: the case of Spain

The sociocultural content of foreign language textbooks has become a concern of scholars and practitioners owing to the fact that the traditional emphasis on purely linguistic issues has been expanded to embrace a language in context approach. This paper studies the English‐speaking communities that are described in English language teaching textbooks marketed in Spain. It examines to what extent an international and/or intercultural approach is a constituent element in their design.     

现代国家、公民教育与宗教

现代国家实施公民教育,努力避免某一宗教活动侵入学校教育的公共领域并获得优势;现代民主国家实行政教分离,在各宗教中保持中立的法律原则;在公共教育领域,国家保障公民人格教育的普遍一致.同时,现代国家承认各宗教的宗教教育及其教义具有正当性并给予合理支持;国家为宗教积极参与社会公众的事业提供必要的法律指导,宗教也积极适应现代社会,成为社会公益事业的一部分.