This paper studies how communication amongst agents influences the equilibrium of a financial economy. We set up a standard overlapping generations (OLG) model with assets, while allowing for heterogeneous beliefs. The paper explicitly describes how communication generates correlation of...

Dans cet article, nous proposons une revue de la littérature sur les frictions financières dans les modèles d'équilibre général intertemporels et stochastiques. Nous présentons en premier lieu les contributions pionnières qui ont analysé les effets d'amplification associés à...

Expectations about the future are central for determination of current macroeconomic outcomes and the formulation of monetary policy. Recent literature has explored ways for supplementing the benchmark of rational expectations with explicit models of expectations formation that rely on...

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...

A popular theory of business cycles is that they are driven by animal spirits: shifts in expectations brought on by sunspots. Two prominent examples are Diamond (JPE, 1982) and Howitt and McAfee (AER, 1992). We show that these models have unique equilibria if there are payoff shocks of any size....