Prisoners Dilemma rules
1. Binding agreements are not possible.
N t i P i dil if bi diNote in Prisoners dilemma, if binding
agreements were possible, there would
be no dilemma
2 Utility is given directly to individuals as a2. Utility is given directly to individuals as a
result of individual actions. So, I don't
need to be worried about collective utility.
Solution: cooperative game theory
· Coalitions set of agents
G d liti ll t k t th· Grand coalition all agents work together
· Characteristic function:
v:2Ag R subsets of agents are
assigned a value.
· Simple coalitional game: a coalition hasSimple coalitional game: a coalition has
value 0 or 1. A voting system can be