Coalition-proof Nash equilibrium
Coalition-proof Nash equilibrium
The concept of coalition-proof Nash equilibrium applies to certain "noncooperative" environments in which players can freely discuss their strategies but cannot make binding commitments. It emphasizes the immunization to deviations that are self-enforcing. While the best-response property in nash-equilibrium is necessary for self-enforceability, it is not generally sufficient when players can jointly deviate in a way that is mutually beneficial.
The strong-nash-equilibrium is criticized as too "strong" in that the environment allows for unlimited private communication.