The paper studies when efficient allocations are implementable via coalition-proof mechanisms. When ambiguous … implementable via interim coalition incentive compatible mechanisms if and only if the prior distribution of agents’ types satisfies … the Coalition Beliefs Determine Preferences (CBDP) property. When the CBDP property holds, these mechanisms can be …

We consider a standard coalitional bargaining game where once a coalition forms it exits as in Okada (2011), however … chosen with equal probability. If that is the case, she can choose any coalition she belongs to. However, a coalition can …