Moriarty, John; McVicar, Duncan; Higgins, Kathryn - Melbourne Institute of Applied Economic and Social … - 2012
, positive, and statistically significant peer effects. Treating nominated friends as the reference group, and using both school … peer effects. Our preferred IV approach exploits information about friends of friends – ‘friends once removed’, who are not … themselves friends – to instrument for friends’ cannabis use. Finally, we examine whether the cannabis use of schoolmates who are …