Collective Irrationality and Positive Feedback
Author Information
Author(s): Nicolis Stamatios C., Zabzina Natalia, Latty Tanya, Sumpter David J. T.
Hypothesis
The probability of taking the best option depends on the strength of positive feedback among group members.
Conclusion
The study shows that optimal feedback strength can maximize the probability of choosing the best option, but this optimal value changes with the number of options available.
Supporting Evidence
- The study shows that the quality of decisions can vary based on the number of options presented.
- It highlights that positive feedback can lead to both fast and accurate group decision-making.
- The research indicates that collective preferences can change with the introduction of new options.
Takeaway
When groups make decisions, they can sometimes seem irrational, especially when the number of choices changes. This happens because of how they rely on feedback from each other.
Methodology
The study uses a generic model of positive feedback and Monte Carlo simulations to analyze decision-making in groups.
Limitations
The model may not capture all complexities of real-world decision-making processes.
Digital Object Identifier (DOI)
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