A condition guaranteeing that the Nash allocation is Walrasian
David Schmeidler
Abstract
Consider the set of net trades attainable by an economic agent when he varies his strategy and all other agents stick to their strategies. If all attainable sets for all agents are star shaped with respect to the origin, then every Pareto efficient Nash allocation is Walrasian. This result bears upon the question whether it is possible to implement redistributive goals without impairing efficiency.
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