Endogenous clustering and analogy-based expectation equilibrium

Fuente: arXiv
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Main Authors: Jehiel, Philippe, Weber, Giacomo
Format: Preprint
Published: 2025
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author Jehiel, Philippe
Weber, Giacomo
author_facet Jehiel, Philippe
Weber, Giacomo
contents Normal-form two-player games are categorized by players into K analogy classes so as to minimize the prediction error about the behavior of the opponent. This results in Clustered Analogy-Based Expectation Equilibria in which strategies are analogy-based expectation equilibria given the analogy partitions and analogy partitions minimize the prediction errors given the strategies. We distinguish between environments with self-repelling analogy partitions in which some mixing over partitions is required and environments with self-attractive partitions in which several analogy partitions can arise, thereby suggesting new channels of belief heterogeneity and equilibrium multiplicity. Various economic applications are discussed.
format Preprint
id arxiv_https___arxiv_org_abs_2505_13022
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Endogenous clustering and analogy-based expectation equilibrium
Jehiel, Philippe
Weber, Giacomo
Theoretical Economics
Normal-form two-player games are categorized by players into K analogy classes so as to minimize the prediction error about the behavior of the opponent. This results in Clustered Analogy-Based Expectation Equilibria in which strategies are analogy-based expectation equilibria given the analogy partitions and analogy partitions minimize the prediction errors given the strategies. We distinguish between environments with self-repelling analogy partitions in which some mixing over partitions is required and environments with self-attractive partitions in which several analogy partitions can arise, thereby suggesting new channels of belief heterogeneity and equilibrium multiplicity. Various economic applications are discussed.
title Endogenous clustering and analogy-based expectation equilibrium
topic Theoretical Economics
url https://arxiv.org/abs/2505.13022