具有互补性模型的一般均衡理论

IF 1.2 3区经济学 Q3 ECONOMICS

Journal of Economic Theory Pub Date : 2025-01-27 DOI:10.1016/j.jet.2025.105975

Tarun Sabarwal

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引用次数: 0

摘要

我们为经济学和其他学科中广泛使用的互补模型中的均衡子集提供了一种新的、通用的最接近顺序比较静力学理论。在单调比较静力学理论中，有序最接近平衡点是自然产生的，但一般来说，它们的存在并不是从基于弱集序或强集序的结果中得出的。我们给出了这样的结果，并利用最佳响应对应的选择的弱单调性和两个新的集合比较关系：星完备关系和星格关系，发展了一般理论。我们不需要任何连续性。我们的结果适用于文献中普遍存在的互补性标准模型，并允许新病例。

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General theory of equilibrium in models with complementarities

We provide a new and general theory of order nearest comparative statics for subsets of equilibria in models with complementarities used widely in economics and other disciplines. Order nearest equilibria are motivated naturally in the theory of monotone comparative statics of equilibrium, but their existence does not follow from results based on weak set order or strong set order, in general. We provide such results and develop the general theory using weak monotonicity of selections from best response correspondences and two new set comparison relations: Star complete relation and star lattice relation. We do not require any continuity properties. Our results hold for standard models with complementarities prevalent in the literature and allow for new cases.

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来源期刊

Journal of Economic Theory ECONOMICS-

CiteScore

2.50

自引率

12.50%

发文量

135

期刊介绍： The Journal of Economic Theory publishes original research on economic theory and emphasizes the theoretical analysis of economic models, including the study of related mathematical techniques. JET is the leading journal in economic theory. It is also one of nine core journals in all of economics. Among these journals, the Journal of Economic Theory ranks fourth in impact-adjusted citations.