Related Experiment Video
Updated: Dec 27, 2025
13:04
Measuring the Subjective Value of Risky and Ambiguous Options using Experimental Economics and Functional MRI Methods
Published on: September 19, 2012
12.4K
Learning about the Ellsberg Paradox reduces, but does not abolish, ambiguity aversion
Ruonan Jia1,2, Ellen Furlong3, Sean Gao2
1Interdepartmental Neuroscience Program, Yale University, New Haven, Connecticut, United States of America.
Plos One
|March 5, 2020
Summary
Understanding ambiguity aversion is key. Behavioral interventions can reduce this tendency, but achieving specific behavioral change remains a challenge.
Area of Science:
- Decision-making science
- Behavioral economics
Background:
- Ambiguity aversion, the avoidance of uncertain outcomes, is common but can lead to poor decisions.
- The Ellsberg Paradox exemplifies how ambiguity aversion causes suboptimal choices.
Purpose of the Study:
- To test a behavioral intervention designed to reduce ambiguity aversion.
- To assess if learning about the Ellsberg Paradox impacts decision-making under ambiguity and risk.
Main Methods:
- Participants chose between lotteries with known (risky) or unknown (ambiguous) probabilities.
- Interventions included learning about the Ellsberg Paradox (actively or passively) or a control topic.
- Post-intervention choices were compared to pre-intervention choices.
Main Results:
- Learning about the Ellsberg Paradox increased tolerance for ambiguity.
- Ambiguity aversion was reduced but not eliminated.
- Participants also showed reduced risk aversion, indicating potential overgeneralization of learning.
Conclusions:
- Behavioral interventions can mitigate ambiguity aversion.
- Care must be taken to ensure interventions lead to specific, not generalized, behavioral changes.
- The challenge lies in creating targeted behavioral shifts without unintended consequences.
Related Concept Videos
01:14Avoidance Learning and Learned Helplessness
2.4K
Avoidance learning and learned helplessness are critical concepts in understanding behavioral responses to negative stimuli.
Avoidance learning occurs when an organism learns that a specific behavior can prevent an unpleasant outcome. For example, a student who receives a bad grade may start studying harder to avoid future poor grades. This behavior persists even when the negative outcome is no longer present. Avoidance learning is powerful because it maintains behavior in the absence of the...
Avoidance learning occurs when an organism learns that a specific behavior can prevent an unpleasant outcome. For example, a student who receives a bad grade may start studying harder to avoid future poor grades. This behavior persists even when the negative outcome is no longer present. Avoidance learning is powerful because it maintains behavior in the absence of the...
2.4K
01:38Cognitive Dissonance
36.7K
Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
36.7K
01:27Halo Effect
299
The halo effect is a cognitive bias in which an individual's overall impression influences judgments about their specific traits. This psychological phenomenon leads people to associate positive characteristics with those they perceive as generally good and negative characteristics with those they view as bad. This effect is particularly influential in social perception, professional evaluations, and decision-making processes.The Psychological Basis of the Halo EffectThe halo effect is rooted...
299
01:21Cognitive Learning
924
Cognitive learning is based on purposive behavior, incidental learning, and insight learning.
E. C. Tolman's theory of purposive behavior emphasizes that much behavior is goal-directed. He argued that to understand behavior, we must look at the entire sequence of actions leading to a goal. For instance, high school students study hard, not just due to past reinforcement but also to achieve the goal of getting into a good college.
Tolman introduced the idea that behavior is influenced by...
E. C. Tolman's theory of purposive behavior emphasizes that much behavior is goal-directed. He argued that to understand behavior, we must look at the entire sequence of actions leading to a goal. For instance, high school students study hard, not just due to past reinforcement but also to achieve the goal of getting into a good college.
Tolman introduced the idea that behavior is influenced by...
924
01:12Hindsight Biases
4.2K
Hindsight bias leads you to believe that the event you just experienced was predictable, even though it really wasn’t. In other words, you knew all along that things would turn out the way they did. Can you relate this to the phrase "Hindsight is 20/20" now?
4.2K
01:25The Anchoring-and-Adjustment Heuristic
7.7K
In order to make good decisions, we use our knowledge and our reasoning. Often, this knowledge and reasoning is sound and solid. However, sometimes, we are swayed by biases or by others manipulating a situation. For example, let’s say you and three friends wanted to rent a house and had a combined target budget of $1,600. The realtor shows you only very run-down houses for $1,600 and then shows you a very nice house for $2,000. Might you ask each person to pay more in rent to get the...
7.7K