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  2. Risk - Wikipedia

    en.wikipedia.org/wiki/Risk

    This definition comes from Willett's "Economic Theory of Risk and Insurance" (1901). [13] This links "risk" to "uncertainty", which is a broader term than chance or probability. "Measurable uncertainty". This definition comes from Knight's "Risk, Uncertainty and Profit" (1921). [14] It allows "risk" to be used equally for positive and negative ...

  3. Prospect theory - Wikipedia

    en.wikipedia.org/wiki/Prospect_theory

    Daniel Kahneman, who won the 2002 Nobel Memorial Prize in Economics for his work developing prospect theory. Prospect theory is a theory of behavioral economics, judgment and decision making that was developed by Daniel Kahneman and Amos Tversky in 1979. [1]

  4. Framing effect (psychology) - Wikipedia

    en.wikipedia.org/wiki/Framing_effect_(psychology)

    The framing effect is a cognitive bias in which people decide between options based on whether the options are presented with positive or negative connotations. [1] Individuals have a tendency to make risk-avoidant choices when options are positively framed, while selecting more loss-avoidant options when presented with a negative frame.

  5. Behavioral economics - Wikipedia

    en.wikipedia.org/wiki/Behavioral_economics

    Behavioral economics is the study of the psychological (e.g. cognitive, behavioral, affective, social) factors involved in the decisions of individuals or institutions, and how these decisions deviate from those implied by traditional economic theory. [1] [2] Behavioral economics is primarily concerned with the bounds of rationality of economic ...

  6. Risk perception - Wikipedia

    en.wikipedia.org/wiki/Risk_perception

    Factors of risk perceptions. Risk perception is the subjective judgement that people make about the characteristics and severity of a risk. [1] [2] [3] Risk perceptions often differ from statistical assessments of risk since they are affected by a wide range of affective (emotions, feelings, moods, etc.), cognitive (gravity of events, media coverage, risk-mitigating measures, etc.), contextual ...

  7. Behavioral game theory - Wikipedia

    en.wikipedia.org/wiki/Behavioral_game_theory

    Behavioral game theory is a primarily positive theory rather than a normative theory. [14] A positive theory seeks to describe phenomena rather than prescribe a correct action. Positive theories must be testable and can be proven true or false. A normative theory is subjective and based on opinions.

  8. Positive and normative economics - Wikipedia

    en.wikipedia.org/wiki/Positive_and_normative...

    Positive economics as a science concerns the investigation of economic behavior. [4] It deals with empirical facts as well as cause-and-effect relationships. It emphasizes that economic theories must be consistent with existing observations and produce precise, verifiable predictions about the phenomena under investigation.

  9. Risk aversion - Wikipedia

    en.wikipedia.org/wiki/Risk_aversion

    The Arrow–Pratt measure of relative risk aversion (RRA) or coefficient of relative risk aversion is defined as [11] = = ″ ′ (). Unlike ARA whose units are in $ −1, RRA is a dimensionless quantity, which allows it to be applied universally.