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Overconfidence and Bubbles in Experimental Asset Markets

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  • Julija Michailova
  • Ulrich Schmidt

Abstract

This paper investigates the relationship between market overconfidence and occurrence of stock-price bubbles. Sixty participants traded stocks in 10 experimental asset markets. Markets were constructed on the basis of subjects' overconfidence: The most overconfident subjects form high overconfidence markets and the least overconfident subjects low overconfidence markets. Prices in low overconfidence markets tend to track the fundamental asset value more accurately than prices in high overconfidence markets and are significantly lower and less volatile. Additionally, we observe significantly higher bubble measures and trading volume in high overconfidence markets. Two possible explanations for these differences are analyzed: While price expectations are significantly higher in high overconfidence markets, no differences in the average degree of risk aversion were detected.

Suggested Citation

  • Julija Michailova & Ulrich Schmidt, 2016. "Overconfidence and Bubbles in Experimental Asset Markets," Journal of Behavioral Finance, Taylor & Francis Journals, vol. 17(3), pages 280-292, July.
    • Handle: RePEc:taf:hbhfxx:v:17:y:2016:i:3:p:280-292
    DOI: 10.1080/15427560.2016.1203325
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    Cited by:

    1. Ahrens, Steffen & Bosch-Rosa, Ciril & Roulund, Rasmus, 2019. "Price Dynamics and Trader Overconfidence," Rationality and Competition Discussion Paper Series 161, CRC TRR 190 Rationality and Competition.
    2. Hanaki, Nobuyuki & Akiyama, Eizo & Ishikawa, Ryuichiro, 2018. "Behavioral uncertainty and the dynamics of traders’ confidence in their price forecasts," Journal of Economic Dynamics and Control, Elsevier, vol. 88(C), pages 121-136.
    3. Cueva, Carlos & Iturbe-Ormaetxe, Iñigo & Ponti, Giovanni & Tomás, Josefa, 2019. "Boys will still be boys: Gender differences in trading activity are not due to differences in (over)confidence," Journal of Economic Behavior & Organization, Elsevier, vol. 160(C), pages 100-120.
    4. Kocher, Martin G. & Lucks, Konstantin E. & Schindler, David, 2016. "Unleashing Animal Spirits - Self-Control and Overpricing in Experimental Asset Markets," Discussion Papers in Economics 27572, University of Munich, Department of Economics.
    5. Ricardo Crisóstomo, 2021. "Estimating real‐world probabilities: A forward‐looking behavioral framework," Journal of Futures Markets, John Wiley & Sons, Ltd., vol. 41(11), pages 1797-1823, November.
    6. Farjam, Mike & Kirchkamp, Oliver, 2018. "Bubbles in hybrid markets: How expectations about algorithmic trading affect human trading," Journal of Economic Behavior & Organization, Elsevier, vol. 146(C), pages 248-269.
    7. Aragón, Nicolás & Roulund, Rasmus Pank, 2020. "Confidence and decision-making in experimental asset markets," Journal of Economic Behavior & Organization, Elsevier, vol. 178(C), pages 688-718.
    8. Kazuto Sasai & Yukio-Pegio Gunji & Tetsuo Kinoshita, 2017. "Intermittent Behavior Induced By Asynchronous Interactions In A Continuous Double Auction Model," Advances in Complex Systems (ACS), World Scientific Publishing Co. Pte. Ltd., vol. 20(02n03), pages 1-21, March.
    9. Cheng, Feiyang & Wang, Chunfeng & Cui, Xin & Wu, Ji & He, Feng, 2021. "Economic policy uncertainty exposure and stock price bubbles: Evidence from China," International Review of Financial Analysis, Elsevier, vol. 78(C).
    10. da Gama Batista, João & Massaro, Domenico & Bouchaud, Jean-Philippe & Challet, Damien & Hommes, Cars, 2017. "Do investors trade too much? A laboratory experiment," Journal of Economic Behavior & Organization, Elsevier, vol. 140(C), pages 18-34.
    11. Zhang, Xiaotao & Liang, Junpeng & He, Feng, 2019. "Private information advantage or overconfidence? Performance of intraday arbitrage speculators in the Chinese stock market," Pacific-Basin Finance Journal, Elsevier, vol. 58(C).
    12. Martin Chegere & Paolo Falco & Marco Nieddiu & Lorenzo Pandolfi & Mattea Stein, 2022. "The Magic of the Game:Experimental Evidence on Sports Betting Behavior," CSEF Working Papers 655, Centre for Studies in Economics and Finance (CSEF), University of Naples, Italy, revised 15 Nov 2024.
    13. Baiba Renerte & Jan Hausfeld & Torsten Twardawski, 2020. "Gender, overconfidence, and optimal group composition for investment decisions," TWI Research Paper Series 121, Thurgauer Wirtschaftsinstitut, Universität Konstanz.
    14. Vanessa Martins Valcanover & Igor Bernardi Sonza & Wesley Vieira da Silva, 2020. "Behavioral Finance Experiments: A Recent Systematic Literature Review," SAGE Open, , vol. 10(4), pages 21582440209, November.
    15. Amos Nadler & Peiran Jiao & Cameron J. Johnson & Veronika Alexander & Paul J. Zak, 2019. "The Bull of Wall Street: Experimental Analysis of Testosterone and Asset Trading," Management Science, INFORMS, vol. 64(9), pages 4032-4051, September.
    16. Andrea Barbon & Angelo Ranaldo, 2023. "NFT Bubbles," Papers 2303.06051, arXiv.org.
    17. Soleman Alsabban & Omar Alarfaj, 2020. "An Empirical Analysis of Behavioral Finance in the Saudi Stock Market: Evidence of Overconfidence Behavior," International Journal of Economics and Financial Issues, Econjournals, vol. 10(1), pages 73-86.
    18. Martin G Kocher & Konstantin E Lucks & David Schindler, 2019. "Unleashing Animal Spirits: Self-Control and Overpricing in Experimental Asset Markets," The Review of Financial Studies, Society for Financial Studies, vol. 32(6), pages 2149-2178.
    19. Ferri, Giovanni & Ploner, Matteo & Rizzolli, Matteo, 2021. "Trading fast and slow: The role of deliberation in experimental financial markets," Journal of Behavioral and Experimental Finance, Elsevier, vol. 32(C).
    20. David L. Dickinson & Ananish Chaudhuri & Ryan Greenaway-McGrevy, 2020. "Trading while sleepy? Circadian mismatch and mispricing in a global experimental asset market," Experimental Economics, Springer;Economic Science Association, vol. 23(2), pages 526-553, June.
    21. Kiss, Hubert J. & Kóczy, László Á. & Pintér, Ágnes & Sziklai, Balázs R., 2022. "Does risk sorting explain overpricing in experimental asset markets?," Journal of Behavioral and Experimental Economics (formerly The Journal of Socio-Economics), Elsevier, vol. 99(C).

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