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Journal of Political Economy Vol. 132 No. 12 2024

Selective-Memory Equilibrium

Drew Fudenberg1,2,3; Giacomo Lanzani1,2,3; Philipp Strack1,2,3

1 Harvard University Press · 2 Yale University · 3 Massachusetts Institute of Technology

Abstract

We study agents who are more likely to remember some experiences than others but update beliefs as if the experiences they remember are the only ones that occurred. To understand the long-run effects of selective memory, we propose selective-memory equilibrium. We show that if the agent’s behavior converges, their limit strategy is a selective-memory equilibrium, and we provide a sufficient condition for behavior to converge. We use this equilibrium concept to explore the consequences of several well-documented biases. We also show that there is a close connection between selective-memory equilibria and the outcomes of misspecified learning.

DOI
10.1086/731412
Volume
132
Issue
12
Pages
3978-4020
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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