Before revision:  We study thisnotion in the context of fair and efficient allocations of indivisible goods among two agents , and show that it is impossible to achieve exact stability along with even a weak notion of fairness and even approximate efficiency.
After revision:  We study thisnotion in the context of fair and efficient allocations of indivisible goods among two agents . We show that it is impossible to achieve exact stability along with even a weak notion of fairness and even approximate efficiency.