Lefort, Jean-Philippe; Dominiak, Adam - Université Paris-Dauphine (Paris IX) - 2011
Nehring-unambiguous events. The results obtained allow to attribute the existence of a speculative trade to the presence of …-but-not-necessarily-additive prior beliefs represented by capacities. It is shown that, if each agent's information partition is made up of unambiguous … events in the sense of Nehring (1999, Mat. Soc. Sci. 38, 197-213), then it is impossible that the agents disagree on their …