In the cases of noncooperative gamesCharacteristic functionNoncooperative game the players cannot or do not want to make binding agreements, so they select strategies independently of each other, and receive the corresponding payoffs. The Nash equilibriumNash equilibrium does not need agreement between the players, since at an equilibrium situation the interest of each player is to keep the equilibrium strategy, otherwise his payoff decreases. Each player considers his own selfish interest without any consideration to the other players. As the next simple example illustrates, the players can be able to increase their payoffs by cooperation.