Noah E. Friedkin is Professor and former Chair of Sociology at the University of California, Santa Barbara. He is the author of A Structural Theory of Social Influence (Cambridge University Press, 1998), which received the award for Best Book in Mathematical Sociology from the Mathematical Sociology Section of the American Sociological Association, as well as articles in various scholarly journals, including The American Sociological Review, The American Journal of Sociology, Social Forces and The Administrative Science Quarterly. He is an elected member of the Sociological Research Associatio...