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Dopamine, Reward Prediction Error, and Economics

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  • Andrew Caplin
  • Mark Dean

Abstract

The neurotransmitter dopamine has been found to play a crucial role in choice, learning, and belief formation. The best-developed current theory of dopaminergic function is the "reward prediction error" hypothesis—that dopamine encodes the difference between the experienced and predicted "reward" of an event. We provide axiomatic foundations for this hypothesis to help bridge the current conceptual gap between neuroscience and economics. Continued research in this area of overlap between social and natural science promises to overhaul our understanding of how beliefs and preferences are formed, how they evolve, and how they play out in the act of choice.

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  • Andrew Caplin & Mark Dean, 2008. "Dopamine, Reward Prediction Error, and Economics," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 123(2), pages 663-701.
    • Handle: RePEc:oup:qjecon:v:123:y:2008:i:2:p:663-701.
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    File URL: http://hdl.handle.net/10.1162/qjec.2008.123.2.663
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