The Neural Basis of Financial Risk Taking
Camelia Kuhnen () and
Experimental from EconWPA
Investors systematically deviate from rationality when making financial decisions, yet the mechanisms responsible for these deviations have not been identified. Using event-related fMRI, we examined whether anticipatory neural activity would predict optimal and suboptimal choices in a financial decision-making task. We characterized two types of deviations from the optimal investment strategy of a rational risk- neutral agent as risk-seeking mistakes and risk-aversion mistakes. Nucleus accumbens activation preceded risky choices as well as risk- seeking mistakes, while anterior insula activation preceded riskless choices as well as risk-aversion mistakes. These findings suggest that distinct neural circuits linked to anticipatory affect promote different types of financial choices, and indicate that excessive activation of these circuits may lead to investing mistakes. Thus, consideration of anticipatory neural mechanisms may add predictive power to the rational actor model of economic decision-making.
Keywords: neuroeconomics; neurofinance; brain; investing; emotions; affect (search for similar items in EconPapers)
JEL-codes: D81 D83 D84 C91 G11 (search for similar items in EconPapers)
New Economics Papers: this item is included in nep-bec, nep-cbe, nep-exp, nep-fin, nep-fmk and nep-mic
Note: Type of Document - pdf; pages: 46. Published in Neuron, Vol. 47, 763-770, September 1, 2005.
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Persistent link: http://EconPapers.repec.org/RePEc:wpa:wuwpex:0509001
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