The main result of this paper characterizes possibly non-symmetric strategy-proof and efficienct choice functions as Perfectly Competitive. Efficiency is defined as impossibility of improvement by reallocation of commodity among finite sets of agents, and largeness of the economy is captured by a weak aggregation-condition called "local separability." Individual rationality constraints with respect to an assignment of endowments imply that the resulting allocations must be Walrasian relative to the assignment of endowments. The exact, local approach combined with a normality assumption on the domain of preferences allows the proofs to remain elementary throughout.
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Paper provided by California Davis - Department of Economics in its series Department of Economics with number
98-01.
Length: Date of creation: Date of revision: Handle: RePEc:fth:caldec:98-01
Contact details of provider: Postal: University of California Davis - Department of Economics. One Shields Ave., California 95616-8578 Phone: (530) 752-0741 Fax: (530) 752-9382 Email: Web page: http://www.econ.ucdavis.edu/ More information through EDIRC
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