Equilibrium and coordination with Shacklean expectations

We start from Shaelde's model of potentiaI surprise to arrive at the discussion ofthe stability of equilibrium under uneertainty. We formulate a hypothesis forthe "corridor" proposed by Leijonhufvud/Clower, relating Hiek's elasticity of expectations to the degree of potentiaI surprise assoeiated to a given event. It is showed lhat the disappointment of an agent' s expectation is related to the degree of convergenee between expeetations of different agents. The width of the eorridor ean then be defmed in terms of this eonvergence.