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The Influence of Psychotropic Drugs on Investor Overconfidence

DOI: 10.4236/oalib.1105486, PP. 1-10

Subject Areas: Behavioral Economics, Drugs & Devices

Keywords: Psychotropic Drugs, Investor Overconfidence, Behavioral Economics

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We study the effects of the self-reported intake of stimulants, depressants and hallucinogens on investor overconfidence. A total of 105 investors participated. We find that the frequency of drug use did not affect overcon-fidence. However, overconfidence was correlated with the use of psycho-tropic drugs in our sample; regardless of type, we find a positive correlation of 15 percent. Correlation of investor overconfidence with stimulants in particular was even stronger at 41 percent. We suggest that identifying the ways psychotropic drugs in general, and stimulants in particular, interfere with striatum activity, is key for understanding their effects on investor overconfidence.

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Zindel, M. , Ribeiro, G. , Rocha, C. H. and Silva, S. D. (2019). The Influence of Psychotropic Drugs on Investor Overconfidence. Open Access Library Journal, 6, e5486. doi:


[1]  Cooper, A.C., Woo, C.A. and Dunkelberg, W. (1988) Entrepreneurs Perceived Chances for Success. Journal of Business Venturing, 3, 97-108.
[2]  Busenitz, L.W. and Barney, J.B. (1997) Differences between Entrepreneurs and Managers in Large Organizations: Biases and Heuristics in Strategic Decision-Making. Journal of Business Venturing, 12, 9-30.
[3]  Delong, B.J., Shleifer, A., Summers, L. and Waldmann, R.J. (1991) The Survival of Noise Traders in Financial Markets. Journal of Business, 64, 1-20.
[4]  Daniel, K., Hirshleifer, D. and Subrahmanyam, A. (1998) Investor Psychology and Security Market Under- and Over-Reactions. Journal of Finance, 53, 1839-1886.
[5]  Odean, T. (1998) Volume, Volatility, Price and Profit When All Traders Are above Average. Journal of Finance, 53, 1887-1934.
[6]  Bernardo, A.E. and Welch, I. (2001) On the Evolution of Overconfidence and Entrepreneurs. Journal of Economics & Management Strategy, 10, 301-330.
[7]  Grinblatt, M. and Keloharju, M. (2009) Sensation Seeking, Overconfidence, and Trading Activity. Journal of Finance, 64, 549-578.
[8]  Fischhoff, B., Slovic, P. and Lichtenstein, S. (1977) Knowing with Certainty: The Appropriateness of Extreme Confidence. Journal of Experimental Psychology, 3, 552-564.
[9]  Kim, O. and Verrecchia, R.E. (1991) Market Reaction to Anticipated Announcements. Journal of Financial Economics, 30, 273-309.
[10]  Benos, A.V. (1998) Aggressiveness and Survival of Overconfident Traders. Journal of Financial Markets, 1, 353-383.
[11]  Peterson, R.L. (2007) Affect and Financial Decision-Making: How Neuroscience Can Inform Market Participants. Journal of Behavioral Finance, 8, 70-78.
[12]  Lane, S.D., Cherek, D.R., Pietras, C.J. and Tcheremissine, O.V. (2004) Alcohol Effects on Human Risk Taking. Psychopharmacology, 172, 68-77.
[13]  Lane, S.D., Cherek, D.R., Tcheremissine, O.V., Lieving, L.M. and Pietras, C.J. (2005) Acute Marijuana Effects on Human Risk Taking. Neuropsychopharmacology, 30, 800-809.
[14]  Deakin, J.B., Aitken, M.R., Dowson, J.H., Robbins, T.W. and Sahakian, B.J. (2004) Diazepam Produces Disinhibitory Cognitive Effects in Male Volunteers. Psychopharmacology, 173, 88-97.
[15]  Lane, S.D., Tcheremissine, O.V., Lieving, L.M., Nouvion, S. and Cherek, D.R. (2005) Acute Effects of Alprazolam on Risky Decision Making in Humans. Psychopharmacology, 181, 364-373.
[16]  Knutson, B., Bjork, J.M., Fong, G.W., Hommer, D.W., Mattay, V.S. and Weinberger, D.R.R. (2004) Amphetamine Modulates Human Incentive Processing. Neuron, 43, 261-269.
[17]  Rogers, R.D., Lancaster, M., Wakeley, J. and Bhagwagar, Z. (2004) Effects of Beta-Adrenoceptor Blockade on Components of Human Decision-Making. Psychopharmacology, 172, 157-164.
[18]  Nesse, R. (2000) Is the Market on Prozac?
[19]  Del-Ben, C.M., Deakin, J.F., McKie, S., Delvai, N.A., Williams, S.R., Elliott, R., Dolan, M. and Anderson, I.M. (2005) The Effect of Citalopram Pretreatment on Neuronal Responses to Neuropsychological Tasks in Normal Volunteers: An fMRI Study. Neuropsychopharmacology, 30, 1724-1734.
[20]  Knutson, B., Wolkowitz, O.M., Cole, S.W., Chan, T., Moore, E.A., Johnson, R.C., Terpstra, J., Turner, R.A. and Reus, V.I. (1998) Selective Alteration of Personality and Social Behavior by Serotonergic Intervention. American Journal of Psychiatry, 155, 373-379.
[21]  Kramer, P.D. (1993) Listening to Prozac: A Psychiatrist Explores Antidepressant Drugs and the Remaking of the Self. Viking, New York.
[22]  Lichtenstein, S. and Fischhoff, B. (1977) Do Those Who Know More Also Know More about They Know? Organizational Behavior and Human Performance, 20, 159-183.
[23]  Zindel, M.L., Menezes, E., Matsushita, R. and Da Silva, S. (2010) Biological Characteristics Modulating Investor Overconfidence. Economics Bulletin, 30, 1496-1508.
[24]  Lichtenstein, S., Fischhoff, B. and Phillips, L.D. (1982) Calibration of Probabilities: The State of the Art to 1980. In: Kahneman, D., Slovic, P. and Tversky, A., Eds., Judgment under Uncertainty: Heuristics and Biases, Cambridge University Press, Cambridge, 306-334.
[25]  Molenberghs, P., Trautwein, F.M., Bockler, A., Singer, T. and Kanske, P. (2016) Neural Correlates of Metacognitive Ability and of Feeling Confident: A Large-Scale fMRI Study. Social, Cognitive and Affective Neuroscience, 11, 1942-1951.


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