Decision accuracy in complex environments is often maximized by small group sizes.

@article{Kao2014DecisionAI,
  title={Decision accuracy in complex environments is often maximized by small group sizes.},
  author={Albert B. Kao and Iain D. Couzin},
  journal={Proceedings. Biological sciences},
  year={2014},
  volume={281 1784},
  pages={20133305}
}
Individuals in groups, whether composed of humans or other animal species, often make important decisions collectively, including avoiding predators, selecting a direction in which to migrate and electing political leaders. Theoretical and empirical work suggests that collective decisions can be more accurate than individual decisions, a phenomenon known as the 'wisdom of crowds'. In these previous studies, it has been assumed that individuals make independent estimates based on a single… CONTINUE READING
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