Author
Listed:
- Kai Barron
(WZB - Wissenschaftszentrum Berlin für Sozialforschung)
- Steffen Huck
(WZB - Wissenschaftszentrum Berlin für Sozialforschung)
- Philippe Jehiel
(PSE - Paris School of Economics - UP1 - Université Paris 1 Panthéon-Sorbonne - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres - EHESS - École des hautes études en sciences sociales - ENPC - École nationale des ponts et chaussées - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, PJSE - Paris Jourdan Sciences Economiques - UP1 - Université Paris 1 Panthéon-Sorbonne - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres - EHESS - École des hautes études en sciences sociales - ENPC - École nationale des ponts et chaussées - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement)
Abstract
This study explores selection neglect in an experimental investment game where individuals can learn from others' outcomes. Experiment 1 examines aggregate-level equilibrium behavior. We find strong evidence of selection neglect and corroborate several comparative static predictions of Jehiel's (2018) model, showing that the severity of the bias is aggravated by the sophistication of other individuals and moderated when information is more correlated across individuals. Experiment 2 focuses on individual decision-making, isolating the influence of beliefs from possible confounding factors. This allows us to classify individuals according to their degree of naïvety and explore the limits of, and potential remedies for, selection neglect.
Suggested Citation
Kai Barron & Steffen Huck & Philippe Jehiel, 2024.
"Everyday Econometricians: Selection Neglect and Overoptimism When Learning from Others,"
Post-Print
halshs-04811339, HAL.
Handle:
RePEc:hal:journl:halshs-04811339
DOI: 10.1257/mic.20200030
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