The authors introduce and analyze 'multistage situations,' which generalize 'multistage games' (which, in turn, generalize 'repeated games'). One reason for this generalization is to avoid the perhaps unrealistic constraints--inherent to noncooperative games--that the set of strategy tuples must...

Using a mixed market model for analyzing imperfectly competitive economies, we maximize the oligopolists'vVelfare Function, given individual rationality and feasibility constraints. We prove that solutions belong to the core for a large class of economies.This class includes, in particular,...