The concept of a value of a coalitional game, in the spirit of R.J. Aumann and L.S. Shapley, is extended to the case of games with fuzzy coalitions, providing new and heuristically meaningful insights into the game theoretical context, which have some significant impact on balance and equilibria...

The fuzzy behaviour of preference tries to introduce indivi- duals whose preferences are not necessarily clear or coher- ent. The agents who have imprecise preferences are much more shaded. On the contrary of Boolean agents, fuzzy agents can- not decide anything with their only preferences....