In sender-receiver games high-quality types can distinguish themselves from low-quality types by sending a costly signal. Allowing for additional, noisy information on sender types can radically alter sender behavior in such games. We examine equilibria where medium types separate themselves...

We consider an economic system composed of interacting potential adopters of a technology. We build a model of interindividual influence effects in which part of the links can be negative, in a context of bounded rational choice. The article shows how the sole relationships topology on a network...

In a game with rational expectations individuals refine their information with the information revealed by strategies of other individuals: the elementary acts of other individuals at each state fo the world. At a Nash game with rational expectations, the information of individuals is...