Distrust in Experts and the Origins of Disagreement

Alice Hsiaw () and Ing-Haw Cheng ()
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Alice Hsiaw: Brandeis University
Ing-Haw Cheng: Brandeis University

No 110R3, Working Papers from Brandeis University, Department of Economics and International Business School

Abstract: Disagreement about the state of the world and expert credibility often go together in areas such as economics, climate change, and medicine. We argue this occurs because individuals make a mistake we call pre-screening when determining how much weight give an expert's signals. A pre-screener mistakes credibility as a primitive of the model and uses the signals to learn about credibility before forming posterior beliefs. Pre-screening predicts that disagreement about credibility is correlated with disagreement about the state. Furthermore: 1) Differing first impressions about credibility create persistent disagreement about the state; 2) Encountering experts in different order generates disagreement; and 3) Confirmation bias, overconfidence, and their opposites endogenously arise. These effects arise even when individuals share common priors, information, and learning errors, providing a theory of the origins of disagreement.

Keywords: disagreement; polarization; learning; expectations; experts (search for similar items in EconPapers)
Pages: 64 pages
Date: 2016-10, Revised 2018-03
New Economics Papers: this item is included in nep-hpe, nep-mic and nep-soc
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http://www.brandeis.edu/economics/RePEc/brd/doc/Brandeis_WP110R3.pdf (application/pdf)

Related works:
Journal Article: Distrust in experts and the origins of disagreement (2022)
Working Paper: Distrust in Experts and the Origins of Disagreement (2017)
Working Paper: Distrust in Experts and the Origins of Disagreement (2016)
Working Paper: Distrust in Experts and the Origins of Disagreement (2016)
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Persistent link: https://EconPapers.repec.org/RePEc:brd:wpaper:110r3

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