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When is a Contrarian Adviser Optimal?

Robert Evans and Sönje Reiche

Cambridge Working Papers in Economics from Faculty of Economics, University of Cambridge

Abstract: We compare contrarian to conformist advice, a contrarian (conformist) expert being one whose preference bias is against (for) the decision-maker's prior optimal decision. We show that optimality of an expert depends on characteristics of prior information and learning. If either the expert is fully informed, or fine information can be acquired at low cost, then for symmetric distributions F of the state a conformist (contrarian) is superior if F is single-peaked (bimodal). If only coarse information can be acquired then a contrarian acquires more information on average, hence is superior. If information is verifiable a contrarian has less incentive to hide unfavorable evidence, and again is superior.

Keywords: Optimal Delegation; Information Acquisition; Evidence Disclosure; Advice; Groupthink (search for similar items in EconPapers)
JEL-codes: D73 D82 D83 (search for similar items in EconPapers)
Date: 2022-03-28
New Economics Papers: this item is included in nep-mic and nep-ore
Note: rae1, skr29
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Persistent link: https://EconPapers.repec.org/RePEc:cam:camdae:2222

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