---
bibtex: @article{list2009independence,
title={Independence and interdependence in collective decision making: an agent-based model of nest-site choice by honeybee swarms},
author={List, Christian and Elsholtz, Christian and Seeley, Thomas D},
journal={Philosophical transactions of The Royal Society B: biological sciences},
volume={364},
number={1518},
pages={755--762},
year={2009},
publisher={The Royal Society}
}
---
Independence and interdependence in collective decision making: an agent-based model of nest-site choice by honeybee swarms
Condorcet’s jury theorem shows that when the members of a group have noisy but independent information about what is best for the group as a whole, majority decisions tend to outperform dictatorial ones. When voting is supplemented by communication, however, the resulting interdependencies between decision makers can strengthen or undermine this effect: they can facilitate information pooling, but also amplify errors. We consider an intriguing non-human case of independent information pooling combined with communication: the case of nest-site choice by honeybee (Apis mellifera) swarms. It is empirically well documented that when there are different nest sites that vary in quality, the bees usually choose the best one. We develop a new agent-based model of the bees’ decision process and show that its remarkable reliability stems from a particular interplay of independence and interdependence between the bees.
Independence without interdependence results in sub optimal outcomes and inefficiencies. Consensus may not occur.
Interdependence without independence results in information cascades and incorrect decisions.
Independence with interdependence results in a robust model of consensus around the correct choice.