Kenneth A. Shepsle is the George D. Markham Professor of Government and founding member of the Institute for Quantitative Social Science at Harvard University. He is the author or coauthor of several books, including Politics in Plural Societies: A Theory of Democratic Instability; The Giant Jigsaw Puzzle: Democratic Committee Assignments in the Modern House; Models of Multiparty Electoral Competition; Making and Breaking Governments; and Analyzing Politics: Rationality, Behavior, and Institutions. He has been a member of the National Academy of Sciences and the American Academy of Arts and Sciences since 1990, and he is the recipient of fellowships by the Hoover Institution, John Simon Guggenheim Memorial Foundation, and Center for Advanced Study in the Behavioral Sciences.
Manuel Castells is Professor of Communication and the Wallis Annenberg Chair in Communication Technology and Society at the Annenberg School for Communication, University of Southern California, as well as Professor Emeritus of Sociology and Planning at the University of California, Berkeley, Research Professor at the Open University of Catalonia, and Marvin and Joanne Grossman Distinguished Visiting Professor of Technology and Society at MIT. He is the author of, among other books, the three-volume work The Information Age: Economy, Society, and Culture.Stephen Ansolabehere is Professor of Government at Harvard University and coauthor of The End of Inequality and other books.