Heifetz, Aviad; Meier, Martin; Schipper, Burkhard C. - 2009
our unawareness belief structures, we show that the common prior assumption is too weak to rule out speculative trade in … all states. Yet, we prove a generalized No-trade theorem according to which there can not be common certainty of strict … preference to trade. Moreover, we show a generalization of the No-agreeing-to-disagree theorem. …