Topological Properties of the Catastrophe Map of a General Equilibrium Production Model with Uncertain States of Nature

• 作者: Pascal Stiefenhofer
• 来源期刊: 应用数学(英文)
• 学科: 数学
• 关键词: Differential TOPOLOGY General EQUILIBRIUM UNCERTAINTY Production
• 年，卷（期）: 2014,（17）
• 页码范围: 2719-2727
• 页数: 9页
• 分类号: O1

摘要

This paper shows existence and efficiency of equilibria of a production model with uncertainty, where production is modeled in the demand function of the consumer. Existence and efficiency of equilibria are a direct consequence of the catastrophe map being smooth and proper. Topological properties of the equilibrium set are studied. It is shown that the equilibrium set has the structure of a smooth submanifold of the Euclidean space which is diffeomorphic to the sphere implying connectedness, simple connectedness, and contractibility. The set of economies with discontinuous price systems is shown to be of Lebesgue measure zero.