The second welfare theorem and the core-equivalence theorem have been proved to be fundamental tools for obtaining equilibrium existence theorems, especially in an infinite dimensional setting. For well-behaved exchange economies that we call proper economies, this paper gives (minimal) conditions for supporting with prices Pareto optimal allocations and decentralizing Edgeworth equilibrium allocations as non-trivial equilibria. As we assume neither transitivity nor monotonicity on the preferences of consumers, most of the existing equilibrium existence results are a consequence of our results. A natural application is in Finance, where our conditions lead to new equilibrium existence results, and also explain why some financial economies fail to have equilibrium.
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Length: Date of creation: Jun 2004 Date of revision: Publication status: Published, Journal of Mathematical Economics, 2004, 40, 3-4, 247-269 Handle: RePEc:hal:cesptp:halshs-00086791_v1
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Aliprantis, Charalambos D & Brown, Donald J & Burkinshaw, Owen, 1987.
"Edgeworth Equilibria,"
Econometrica,
Econometric Society, vol. 55(5), pages 1109-37, September.
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