The jury theorem states that based on the aggregation of competences, a group of agents will be the most capable of making the right decisions rather than one individual. However, the jury theorem is based on two restrictive hypotheses, the first being the stochastic independence of decisions....

Within the context of coalition behaviour, proving sources of rationality is one of the main problems in explaining the foundations of cooperative games. Coalitions appear because winnings are super-additive. However, people with rational behaviour choose strategies with under-additive winnings,...