the average rankings of the other types of groups. We show that a core stable coalition structure always exists, provided …

coalition forms without delay in equilibrium, expected payoffs must be in the core of the characteristic function game that …

We study linearly weighted versions of the least core and the (pre)nucleolus and investigatethe reduction possibilities … dual game. Our main results imply, for example, that if the core of the game is not empty, all dually inessential … core and the per-capita (pre)nucleolus from the dual game. This could lead to the design of polynomial time algorithms for …