Salganik, Matthew J.Walburn, Joshua Douglas2014-09-202026-09-302014-09-202026-09-30201125807http://arks.princeton.edu/ark:/88435/dsp01tq57ns91xhttps://theses-dissertations.princeton.edu/handle/88435/dsp01tq57ns91x82 PagesStrong Ties: A Study of Close Friendship Formation at Princeton UniversityPrinceton University Senior Theses