Similarity breeds connection. This principle—the homophily principle—structures network
ties of every type, including marriage, friendship, work, advice, support, information transfer …

Much convergence exists between exchange theory and network approaches to social
structure. Starting with the work of Emerson, exchange theory increasingly has considered …

Integrated schools may still be substantively segregated if friendships fall within race.
Drawing on contact theory, this study tests whether school organization affects friendship …

Patterns of inbreeding (or homophily) and social distance in data from the 1985 General
Social Survey on dyads discussing important matters are examined. Stratifying variables …

Some groups endure longer, are more stable, and are better able than other groups to
incorporate new members or ideas without losing their distinctiveness. I present a simple …

Are large American corporations politically unified or divided? This question, which has
important implications for the viability of American democracy, has frustrated social scientists …

Workers find jobs through personal contacts (weak and strong ties) and formal sources.
Alternative formulations of the strength-of-weak-ties hypothesis suggest (1) weak ties relay …

This 2007 book provides a systematic and self-contained account of the fast-developing
theory of complex social networks. Social networks are central to the understanding of most …

This article considers both structural and strategic influences on collective action. Each
person in a group wants to participate only if the total number taking part is at least her …

Why do populations often self-organize into antagonistic groups even in the absence of
competition over scarce resources? Is there a tendency to demarcate groups of “us” and …