Investors' Personality Influences Investment Decisions: Experimental Evidence on Extraversion and Neuroticism

Andreas Oehler, Stefan Wendt, Florian Wedlich and Matthias Horn

Journal of Behavioral Finance, 2018, vol. 19, issue 1, 30-48

Abstract: The authors analyze the impact of individuals' degree of extraversion and neuroticism on their decision making in an experimental asset market. To establish this link between research on experimental asset markets and social psychology the authors use a unique approach that combines a questionnaire designed to assess individuals' degree of extraversion and neuroticism and an experimental asset market to assess individual financial decision making. The dataset combines 364 undergraduate business students' questionnaire responses and their trading behavior in the asset market. The authors find that extraversion and neuroticism significantly influence individuals' behavior in the experimental asset market. Specifically, more extraverted individuals pay higher prices for financial assets and they buy more financial assets when assets are overpriced than less extraverted individuals do. More neurotic individuals hold less risky assets in their financial portfolios than less neurotic individuals do. Although a large part of the explanatory power appears to be driven by gender differences, the authors still find significant impact of extraversion and neuroticism after controlling for gender effects. The study findings suggest that further research on financial markets could benefit from including personality of market participants as a crucial explanatory factor.

Date: 2018
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DOI: 10.1080/15427560.2017.1366495

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