We study two different modes of social influence on human or artificial decision makers operating in complex environments. One is through emulation of social values, and the other is through social recommendations for specific actions. In an economic environment where agents make trade and...

We simulate interbank lending. Each bank faces fluctuations in deposits and stochastic investment opportunities which mature with delay. This creates the risk of liquidity shortages. An interbank market lets participants pool this risk but also creates the potential for one bank's crisis to...

Several models have been proposed to study the dynamics of competition between languages. Among them, and starting from the dynamics of endangered languages, recent approaches have addressed the issue of bilingualism. Along these lines we consider the dynamics of language use, allowing for...

Survey data on agent expectations appear to experience inertia, remaining relatively stable for protracted periods punctuated with the occasional structural shift initiated by exogenous changes. The data is also characterised with an underlying level of volatility which varies over time. This...

Network economics holds the view that individual actions and, in turn aggregate outcomes, are mainly determined by the interaction structure between heterogeneous economic agents. In this paper we study the diffusion of an innovation over a social network. More specifically, we study whether...