We consider a model of socially interacting individuals that make a binary choice in a context of positive additive endogenous externalities. It encompasses as particular cases several models from the sociology and economics literature. We extend previous results to the case of a general...

We aim to identify the conditions under which social influence enables emergence of a shared opinion orientation among members of an organization over time, when membership is subject to continuous but partial turnover. We study an intra-organizational advice network that channels social...

This paper presents a model of influence where agents' beliefs are based on an objective reality, such as the properties of an environment. The perception of the objective reality is not direct: all agents know is that the more correct a belief, the more successful the actions that are deduced...

Este estudio se ocupa de relevar la literatura internacional sobre economías de escala en el sector de agua y saneamiento, reseñarla y extraer hilos conductores. En todo el mundo está en discusión cómo lograr un acceso más equitativo y una prestación más eficiente. Un tema vinculado con...

This paper analyses the determinants of the Romanian temporary labour migration during the transition period. First of all, we build a househould level model in order to explain the decision to migrate in a couple. Then, by using a 10% sample of the Romanian 2002 Census we try to assess the...

This paper is organized as follows : First we show that the reference to the notion of group selection is coherent with the other parts of Hayek's thought. Second we develop the idea that recent works in terms of the emergence and evolution of social norms corroborate in part Hayek's theses in...