Supermodularity and preferences

We uncover the complete ordinal implications of supermodularity on finite lattices under the assumption of weak monotonicity. In this environment, we show that supermodularity is ordinally equivalent to the notion of quasisupermodularity introduced by Milgrom and Shannon. We conclude that supermodularity is a weak property, in the sense that many preferences have a supermodular representation.

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Year of publication:	2009
Authors:	Chambers, Christopher P. ; Echenique, Federico
Published in:	Journal of Economic Theory. - Elsevier, ISSN 0022-0531. - Vol. 144.2009, 3, p. 1004-1014
Publisher:	Elsevier
Keywords:	Complementarity Revealed preference Afriat's theorem Refutability

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Type of publication:	Article
Source:	RePEc - Research Papers in Economics

Persistent link: https://www.econbiz.de/10005005932