Journal
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
Volume 276, Issue 1665, Pages 2171-2178Publisher
ROYAL SOC
DOI: 10.1098/rspb.2009.0121
Keywords
Prisoner's Dilemma; quantum probability; decision-making; cognitive science
Categories
Funding
- ESRC [R000222655]
- NIMH [R01 MH068346]
- NSF MMS [SES 0753164]
- Economic and Social Research Council [RES-000-23-1541] Funding Source: researchfish
- ESRC [RES-000-23-1541] Funding Source: UKRI
- Direct For Social, Behav & Economic Scie
- Divn Of Social and Economic Sciences [0817965] Funding Source: National Science Foundation
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Two experimental tasks in psychology, the two-stage gambling game and the Prisoner's Dilemma game, show that people violate the sure thing principle of decision theory. These paradoxical findings have resisted explanation by classical decision theory for over a decade. A quantum probability model, based on a Hilbert space representation and Schrodinger's equation, provides a simple and elegant explanation for this behaviour. The quantum model is compared with an equivalent Markov model and it is shown that the latter is unable to account for violations of the sure thing principle. Accordingly, it is argued that quantum probability provides a better framework for modelling human decision-making.
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