The Collective Dynamics Group is a dedicated research effort, led by Professor Duncan Watts, the unifying theme of which is the application of modern mathematical and computational techniques to problems relevant to the social sciences. Examples of current projects include the structure and evolution of social networks, the dynamics of disease epidemics and cultural fads, the role of social information in financial markets, and the use of the Internet as a tool for social science research. The group consists of graduate students and post-doctoral researchers from mathematics, sociology, and economics.