Social interactions are generally thought to play an important role in smoking initiation among adolescents. In this paper we exploit detailed friendship nominations in the US Add Health data, and extend the Spatial Autoregressive Model (SAR) model to deal with (i) endogenous peer selection, and...

Economic literature has identified positive effects of peer abilities on individual achievement. However, the intuitive arguments supporting this evidence are not clear. This article presents a specific mechanism: cooperation and competition among group members; more precisely, the presence of...

We explore the importance of appearance in the endogenous formation of groups using a series of experiments. Participants get to choose who they want in their group, and we manipulate the amount of payoff-relevant information on behavior, thereby making it costly to discriminate based on...

Most work on social interactions studies a single, composite effect of interactions within a group. Yet in the case of sexual initiation, there are two distinct social mechanisms - peer-group norms and partner availability with separate effects and different potential interventions. Here I...

This paper estimates peer influences on the alcohol, tobacco and cannabis use of a school based sample of UK 15 year olds. We present evidence of large, positive and statistically significant peer effects in all three behaviours when classmates are taken as the reference group. When friends are...

This paper presents micro-econometric evidence on peer effects in adolescent smoking between classmates aged 15/16 years across 13 European countries. Both instrumental variables and school fixed effects are used for identification. Omitting school fixed effects, as in some existing IV studies...

Becattini’s (1979, 1989, 1990) “simple” redefinition of the research object from “industry” to “district,” that is, from a product/market-based definition to a territory-based one, allowed for an enlargement of the scope of economic analysis which has shown complex interactions...

This study explores the interaction between professional imprinting and age in the context of industry-science collaboration. Specifically, we examine the impact of localized and personal peer effects on academics’ involvement with industry and how these effects are moderated by the career age...

This paper aims to highlight the importance of considering endogenous peer effects, as defined by Manski (1993), in order to identify gender composition effect on education outcome appropriately. Using Manski (1993) linear-in-means model, this paper illustrates that the gender composition effect...

We interview both parents and their children enrolled in six primary schools in the district of Treviso (Italy). We study the structural differences between the children network of friends reported by children and the one elicited asking their parents. We find that the parents’ network has a...