On the boundary behavior of the excess demand function

Francesco Ruscitti

Research in Economics, 2012, vol. 66, issue 4, 371-374

Abstract: I revisit thoroughly the standard boundary behavior satisfied by the excess demand function of a competitive economy, and I prove two implications of the boundary behavior. Then, I show that these implications lead to an alternative proof of the existence of competitive equilibria which is instructive, shorter and perhaps easier than the available proofs in the literature.

Keywords: Excess demand function; Boundary behavior; Competitive equilibrium; Correspondences; Maximal elements (search for similar items in EconPapers)
Date: 2012
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Persistent link: https://EconPapers.repec.org/RePEc:eee:reecon:v:66:y:2012:i:4:p:371-374

DOI: 10.1016/j.rie.2012.05.001

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