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...

The co-evolution of social networks and opinion formation has received increasing attention in recent years. As a contribution to the growing literature on this topic, we explore connections between empirical data representing the advice network of judges at the Commercial Court in Paris and an...

We provide the first theoretical analysis of altruism in networks. Agents are embedded in a fixed, weighted network and care about their direct friends. Given some initial distribution of incomes, they may decide to support their poorer friends. We study the resulting non-cooperative transfer...

Ce rapport de recherche est une synthèse de la littérature en sciences sociales abordant la question de la régulation formelle des communautés en ligne, en particulier celles des sites de réseaux sociaux, de partage de vidéos, de "fanfictions", les communautés open-source, open-media, les...

The purpose of this paper is to offer customer relationship insights in what is a fast developing new e-commerce development strategy. We examine the potential synergies between digital social networks (DSN) and e-commerce websites, thus bringing e-commerce and DSN websites into the same...

Using village data from Tanzania, we test whether gifts and loans between households are voluntary while correcting for mis-reporting by the giving and receiving households. Two maintained assumptions underlie our analysis: answers to a question on who people would turn to for help are good...

Students' social networks are deeply disrupted during school transitions and students start in a classroom environment where almost all their peers are new. In this study, we investigate the consequences of keeping partly the same classmates during the transition to high school. To overcome the...

This article aims to study youth employability on the job access channel that provided their entry into the labor market. We examine the determinants of the formal and informal job access channels. For this purpose, we estimate a Multinomial Logit model of access channels controlling for...

This article considers the effects of uncertainty, structure, trust and resistance to change on the success or failure of management accounting innovations diffusion. The diffusion process is examined through a social network of nodes and ties. Ties represent communication channels through which...

This paper studies optimal pricing in networks in the presence of local consumption or price externalities. It analyzes the relation between prices and nodal centrality measures. Using an asymptotic approach, it shows that the ranking of optimal prices and strategies can be reduced to the...