The unbinding core for coalitional form games (Q2243509)

The authors introduce a new core concept called the unbinding core by extending the definition of a deviation. In the traditional definition, players deviate if a profitable allocation exists after their deviation, while the new definition requires that all possible allocations are profitable. Therefore, the unbinding core becomes a superset of the traditional core. They examine some properties of the unbinding core; in particular, a sufficient condition for the unbinding core to be nonempty is provided.