, and a natural experiment conducted on, students from the United States Naval Academy (USNA). We develop a conceptual … rich set of covariates and the random assignment of students to peer groups. We find that students can be influenced by …

We analyze the characteristics of the social networks of students studying in the economics department in one Russian … individual characteristics of students and their peers. We find that the probability of a tie existing is explained by the gender … homophily, and initial student assignment to the same exogenously defined study group. Students ask for help and form …