Equilibrium with non-convex preferences: some insights

Cuong Le Van and Ngoc-Sang Pham
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Cuong Le Van: CNRS, PSE, CES
Ngoc-Sang Pham: EM Normandie

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Abstract: We study the existence of equilibrium when agents' preferences may not beconvex. For some specific utility functions, we provide a necessary and sufficientcondition under which there exists an equilibrium. The standard approach cannot be directly applied to our examples because the demand correspondence of some agents is neither single-valued nor convex-valued.

Date: 2025-03
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