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Titel
Estimating the relationship between skill and overconfidence / Jan Feld (Victoria University of Wellington and IZA), Jan Sauermann (SOFI, Stockholm University; ROA, Maastricht University; CCP and IZA), Andries De Grip (ROA, Maastricht University and IZA) ; IZA, Institute of Labor Economics
VerfasserFeld, Jan In der Gemeinsamen Normdatei der DNB nachschlagen In Wikipedia suchen nach Jan Feld ; Sauermann, Jan In der Gemeinsamen Normdatei der DNB nachschlagen In Wikipedia suchen nach Jan Sauermann ; Grip, Andries de In der Gemeinsamen Normdatei der DNB nachschlagen In Wikipedia suchen nach Andries de Grip
KörperschaftForschungsinstitut zur Zukunft der Arbeit In der Gemeinsamen Normdatei der DNB nachschlagen In Wikipedia suchen nach Forschungsinstitut zur Zukunft der Arbeit
ErschienenBonn, Germany : IZA Institute of Labor Economics, March 2017
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Elektronische Ressource
Umfang1 Online-Ressource (25 Seiten) : Diagramme
SerieDiscussion paper ; no. 10611
URNurn:nbn:de:hbz:5:2-116182 Persistent Identifier (URN)
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Estimating the relationship between skill and overconfidence [0.43 mb]
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Zusammenfassung

The Dunning-Kruger effect states that low performers vastly overestimate their performance while high performers more accurately assess their performance. Researchers usually interpret this empirical pattern as evidence that the low skilled are vastly overconfident while the high skilled are more accurate in assessing their skill. However, measurement error alone can lead to a negative relationship between performance and overestimation, even if skill and overconfidence are unrelated. To clarify the role of measurement error, we restate the Dunning-Kruger effect in terms of skill and overconfidence. We show that we can correct for bias caused by measurement error with an instrumental variable approach that uses a second performance as instrument. We then estimate the Dunning-Kruger effect in the context of the exam grade predictions of economics students, using their grade point average as an instrument for their exam grade. Our results show that the unskilled are more overconfident than the skilled. However, as we predict in our methodological discussion, this relationship is significantly weaker than ordinary least squares estimates suggest.