Monotone comparative statics: changes in preferences versus changes in the feasible set

Kukushkin, Nikolai

Monotone comparative statics: changes in preferences versus changes in the feasible set

Economic Theory, 2013, vol. 52, issue 3, 1039-1060

Abstract: Let a preference ordering on a lattice be perturbed. As is well known, single crossing conditions are necessary and sufficient for a monotone reaction of the set of optimal choices from every chain. Actually, there are several interpretations of monotonicity and several corresponding single crossing conditions. We describe restrictions on the preferences that ensure a monotone reaction of the set of optimal choices from every sublattice whenever a perturbation of preferences satisfies the corresponding single crossing condition. Quasisupermodularity is necessary if we want monotonicity in every conceivable sense; otherwise, weaker conditions will do. Copyright Springer-Verlag 2013

Keywords: Strategic complementarity; Monotone comparative statics; Best response correspondence; Single crossing; Quasisupermodularity; C 61; C 72 (search for similar items in EconPapers)
Date: 2013
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Citations: View citations in EconPapers (10)

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DOI: 10.1007/s00199-011-0677-8

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