Pin, Paolo; Franz, Silvio; Marsili, Matteo - Fondazione ENI Enrico Mattei (FEEM) - 2008
--based homophily and ii) they are both remarkably stationary in time; concerning race iii) school friendships do not exhibit … opportunity-based homophily, while marriages do, iv) choice-based homophily is much stronger for marriages than for friendships … tend to be concentrated within the same group. This phenomenon, called imbreeding homophily, has been related to either …