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Markets with infinitely many commodities and a continuum of agents with non-convex preferences (*)

  • Konard Podczeck

    (Institut fØr Wirtschaftswissenschaften, UniversitÄt Wien, Hohenstaufengasse 9, A-1010 Wien, AUSTRIA)

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    Contrary to the finite dimensional set-up, the hypothesis of an atomless measure space of traders does not entail convexity of aggregate demand sets if there are infinitely many commodities. In this paper an assumption is introduced which sharpens the non-atomicity hypothesis by requiring that there are "many agents of every type." When this condition holds, aggregate demand in an infinite dimensional setting becomes convex even if individual preferences are non-convex. This result is applied to prove the existence of competitive equilibria in such a context.

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    Article provided by Springer in its journal Economic Theory.

    Volume (Year): 9 (1997)
    Issue (Month): 3 ()
    Pages: 385-426

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    Handle: RePEc:spr:joecth:v:9:y:1997:i:3:p:385-426
    Note: Received: December 10; revised version 199 5 March 8, 1996
    Contact details of provider: Web page: http://link.springer.de/link/service/journals/00199/index.htm

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