Prospect Theory

Prospect theory is a behavioral economic theory that describes the way people choose between probabilistic alternatives that involve risk, where the probabilities of outcomes are known. The theory states that people make decisions based on the potential value of losses and gains rather than the final outcome, and that people evaluate these losses and gains using certain heuristics. The model is descriptive: it tries to model real-life choices, rather than optimal decisions.The theory was developed by Daniel Kahneman and Amos Tversky in 1979 as a psychologically more accurate description of decision making, comparing to the expected utility theory.
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