Reward the Contribution, Not the Expert

A game theory model examines how collective intelligence can arise when each individual observes only one part of a complex environment.

Rewarding the most accurate individual initially improves performance but eventually causes others to copy the same strategy, destroying informational diversity. Rewarding rare specialists preserves broader coverage but adapts slowly after environmental change. A third approach rewards individuals according to how their contribution moves the group prediction toward the truth, maintaining diverse viewpoints and allowing the collective to recover rapidly after shocks.

https://www.siam.org/publications/siam-news/articles/game-theory-for-the-evolution-of-collective-intelligence/