This paper presents a surprising example. It shows that lattice theoretic properties in Mas-Colell's (1986) seminal work are relevant to the existence of equilibrium problem even when commodity space is finite dimensional. The paper provides an example of an economy with three commodities and...

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...

The aim of the article is to link the formation of influence networks with the long run coexistence of technologies. In the spirit of Plouraboue et al. (1998), we postulate that potential adopters of a technology are situated in a social network. In our model, initial relations are partly...

The aim of this paper is to lay the foundations of a social influence based approach for the diffusion of an innovation or a technological standard.