The over/underconfidence behavior has been explained as a bias of the cognitive process in the decision maker. Such bias has been mainly justified by the difficulty of the task or the problem to decide upon. It’s the so called 'hard-easy effect' (Lichtenstein and Fischhoff, 1977). In this...

Social norms in ultimatum's game establish that extremely unequal offers lead to an inevitable failure. However, even under the obedience of the norm and far from Nash Equilibrium, negotiated wealth is traditionally favorable for proposers when information given is temporally incomplete. In our...