Homophily and the persistence of disagreement

Isabel Melguizo

MPRA Paper from University Library of Munich, Germany

Abstract: We study a dynamic model of attitude formation in which individuals average others' attitudes to develop their own. We assume that individuals exhibit homophily in sociodemographic exogenous attributes, that is, the attention they pay to each other is based on whether they possess similar attributes. We also assume that individuals exhibit homophily in attitudes, at the group level. Specifically, attributes that are salient, that is, that exhibit a substantial difference in attitudes between the groups of individuals possessing and lacking them, deserve high attention. Since we allow attention to evolve over time we prove that when there is, initially, a unique most salient attribute, it deserves growing attention overtime in detriment of the remaining ones. As a result, individuals eventually interact only with others similar to them across this attribute and disagreement persists. It materializes in two groups of thinking defined according to this attribute.

Keywords: disagreement; homophily; average-based updating (search for similar items in EconPapers)
JEL-codes: D83 D85 Z13 (search for similar items in EconPapers)
Date: 2017-01
New Economics Papers: this item is included in nep-cdm, nep-net, nep-soc and nep-ure
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Related works:
Journal Article: Homophily and the Persistence of Disagreement (2019)
Working Paper: Homophily and the Persistence of Disagreement (2017)
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Persistent link: https://EconPapers.repec.org/RePEc:pra:mprapa:77367

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