Kontek, Krzysztof (2009): On Mental Transformations.
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Abstract
The paper presents an alternative interpretation of the experimental data published by Kahneman and Tversky in their 1992 study "Advances in Prospect Theory”, which describes the Cumulative version of their Prospect Theory from 1979. It was assumed that, apart from the operations made during the initial stage of problem resolution, which Prospect Theory defines as Editing (here generalized as Mental Adaptation), other mental transformations such as Prospect Scaling (resulting from Focused Attention) and Logarithmic Perception of Financial Stimuli should be considered when analyzing the experimental data. This led to the design of an explicit, simple and symmetric solution without the use of the probability weighting function. The double Stype function obtained (the aspiration function) resembles the utility curve specified by the Markowitz hypothesis (1952) and substitutes the fourfold pattern of risk attitudes introduced by Cumulative Prospect Theory. The results presented constitute a basis for negating Prospect Theory as a theory which correctly describes how decisions are made under conditions of risk and may signal a return to a description of people’s behavior that only relies on the utilitylike function.
Item Type:  MPRA Paper 

Original Title:  On Mental Transformations 
Language:  English 
Keywords:  Prospect/Cumulative Prospect Theory, Markowitz Utility Hypothesis, Utility & Aspiration Functions, Mental Processes, Adaptation & Attention Focus 
Subjects:  D  Microeconomics > D0  General > D03  Behavioral Economics; Underlying Principles D  Microeconomics > D8  Information, Knowledge, and Uncertainty > D81  Criteria for DecisionMaking under Risk and Uncertainty D  Microeconomics > D0  General > D01  Microeconomic Behavior: Underlying Principles C  Mathematical and Quantitative Methods > C9  Design of Experiments > C91  Laboratory, Individual Behavior 
Item ID:  16516 
Depositing User:  Krzysztof Kontek 
Date Deposited:  03. Aug 2009 05:39 
Last Modified:  22. Feb 2014 08:40 
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URI:  http://mpra.ub.unimuenchen.de/id/eprint/16516 
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