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American Economic Review Vol. 111 No. 11 2021

Constrained Pseudo-Market Equilibrium

Federico Echenique1; Antonio Miralles2; Jun Zhang3

1 Division of the Humanities and Social Sciences, California Institute of Technology (email: ) · 2 Department of Economics, Universitat Autònoma de Barcelona and Barcelona Graduate School of Economics and Università degli Studi di Messina (email: ) · 3 Institute for Social and Economic Research, Nanjing Audit University (email: )

open access

Abstract

We propose a pseudo-market solution to resource allocation problems subject to constraints. Our treatment of constraints is general: including bihierarchical constraints due to considerations of diversity in school choice, or scheduling in course allocation; and other forms of constraints needed to model, for example, the market for roommates, combinatorial assignment problems, and knapsack constraints. Constraints give rise to pecuniary externalities, which are internalized via prices. Agents pay to the extent that their purchases affect the value the of relevant constraints at equilibrium prices. The result is a constrained-efficient market-equilibrium outcome. The outcome is fair to the extent that constraints treat agents symmetrically.

DOI
10.1257/aer.20201769
Volume
111
Issue
11
Pages
3699-3732
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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