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Article

A Unified Theory of Human Judgements and Decision-Making under Uncertainty

1
Institute of Electronics, Microelectronics and Nanotechnology (IEMN), Lille University, Avenue Poincaré CS 60069, CEDEX, 59652 Villeneuve d’Ascq, France
2
School of Business and Centre for Quantum Social and Cognitive Science (IQSCS), University of Leicester, University Road, Leicester LE1 7RH, UK
*
Author to whom correspondence should be addressed.
Entropy 2020, 22(7), 738; https://doi.org/10.3390/e22070738
Received: 6 June 2020 / Revised: 29 June 2020 / Accepted: 1 July 2020 / Published: 3 July 2020
(This article belongs to the Special Issue Quantum Models of Cognition and Decision-Making)
Growing empirical evidence reveals that traditional set-theoretic structures cannot in general be applied to cognitive phenomena. This has raised several problems, as illustrated, for example, by probability judgement errors and decision-making (DM) errors. We propose here a unified theoretical perspective which applies the mathematical formalism of quantum theory in Hilbert space to cognitive domains. In this perspective, judgements and decisions are described as intrinsically non-deterministic processes which involve a contextual interaction between a conceptual entity and the cognitive context surrounding it. When a given phenomenon is considered, the quantum-theoretic framework identifies entities, states, contexts, properties and outcome statistics, and applies the mathematical formalism of quantum theory to model the considered phenomenon. We explain how the quantum-theoretic framework works in a variety of judgement and decision situations where systematic and significant deviations from classicality occur. View Full-Text
Keywords: quantum structures; concept theory; decision theory; cognitive fallacies; disjunction effect; Ellsberg paradox; quantum modelling; historical perspectives quantum structures; concept theory; decision theory; cognitive fallacies; disjunction effect; Ellsberg paradox; quantum modelling; historical perspectives
MDPI and ACS Style

Pisano, R.; Sozzo, S. A Unified Theory of Human Judgements and Decision-Making under Uncertainty. Entropy 2020, 22, 738. https://doi.org/10.3390/e22070738

AMA Style

Pisano R, Sozzo S. A Unified Theory of Human Judgements and Decision-Making under Uncertainty. Entropy. 2020; 22(7):738. https://doi.org/10.3390/e22070738

Chicago/Turabian Style

Pisano, Raffaele, and Sandro Sozzo. 2020. "A Unified Theory of Human Judgements and Decision-Making under Uncertainty" Entropy 22, no. 7: 738. https://doi.org/10.3390/e22070738

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