We study how social interaction and friendship shape students' political opinions in a natural experiment at Sciences Po, the cradle of top French politicians. We exploit arbitrary assignments of students into short-term integration groups before their scholar cursus, and use the pairwise...

This paper aims to investigate the impact of interpersonal networks on the innovativeness of inventors. A significant amount of literature has been devoted to the analysis of network effects in the economic and managerial sciences. The main research works in this field have emphasized the strong...

We study how friendship shapes students' political opinions in a natural experiment. We use the indicator whether two students were exogenously assigned to a short-term "integration group", unrelated to scholar activities and dissolved before the school year, as instrumental variable for their...