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Une note sur un théorème de point-fixe

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We present a theorem on the existence of a maximal element for a correspondence which is upper hemi-continuous in some variables and which satisfies with respect to the other ones one the following conditions : (i) lower semi-continuous if the space has a finite dimension, (ii) lower semi-continuous if the space is complete, (iii) open fibers. This theorem generalizes the result of Gale-Mas-Colell (1975-1979) and the one of Bergstrom (1975) and extend to the infinite dimensional setting the result of Gourdel (1995).

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File URL: ftp://mse.univ-paris1.fr/pub/mse/cahiers2006/B06059.pdf
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Bibliographic Info

Paper provided by Université Panthéon-Sorbonne (Paris 1) in its series Cahiers de la Maison des Sciences Economiques with number b06059.

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Length: 8 pages
Date of creation: Feb 2006
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Handle: RePEc:mse:wpsorb:b06059

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Keywords: Fixed-point; maximal element; upper hemi-continuous; selection theorems; endogenous endowments.;

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