A Quasi Fixed-Point Theorem for a Product of u.s.c. or o.l.s. Correspondences with an Economic Application

I. Lefebvre

Papiers d'Economie Mathématique et Applications from Université Panthéon-Sorbonne (Paris 1)

Abstract: In the first place, we present a quasi fixed-point theorem for a correspondence defined on some infinite-dimensional locally convex topological vector space such that some variables have open lower sections and the other ones are upper semicontinuous. In the second place, we propose a direct application of the quasi fixed-point result in an economic model. More precisely, we prove a nonemptiness result of the core of an exchange economy with asymmetric information, a continuum of states and a finite number of commodities.

Keywords: EXCHANGE RATE; INFORMATION; ECONOMIC MODELS (search for similar items in EconPapers)
JEL-codes: D51 D82 (search for similar items in EconPapers)
Pages: 18 pages
Date: 1999
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Persistent link: https://EconPapers.repec.org/RePEc:fth:pariem:1999-62

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