Why quantum probability does not explain the conjunction fallacy
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Katya Tentori1, Vincenzo Crupi
1Center for Mind/Brain Sciences (CIMeC), Department of Psychology and Cognitive Sciences (PSC), University of Trento, Palazzo Fedrigotti, Corso Bettini, n. 31, 38068 Rovereto, Italy. katya.tentori@unitn.it
Abstract:
We agree with Pothos & Busemeyer (P&B) that formal tools can be fruitfully employed to model human judgment under uncertainty, including well-known departures from principles of classical probability. However, existing findings either contradict P&B's quantum probability approach or support it to a limited extent. The conjunction fallacy serves as a key illustration of both kinds of problems.
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