One of the "hottest" concepts in international academic social-science research, social capital refers to the ways in which people make use of social networks in "getting ahead". This book presents the latest contributions and advances in theory and method in this important...

Blockmodel analysis offers a perspective for developing operational theories of role interlock across multiple networks. We identify precisely those features of role interlock that are shared by the elites of two small cities. This joint role structure is then interpreted with the aid of an...

We contend that clusters of cases co-constitute statistical interactions among variables. Interactions among variables imply clusters of cases within which statistical effects differ. Regression coefficients may be productively viewed as sums across clusters of cases, and in this sense...