Yu Xie is Bert G. Kerstetter '66 University Professor of Sociology and PIIRS at Princeton University. His main areas of interest are social stratification, demography, statistical methods, Chinese studies, and sociology of science. Xie joined the faculty Aug. 1 after 26 years at the University of Michigan, most recently as the Otis Dudley Duncan Distinguished University Professor of Sociology, Statistics and Public Policy and a research professor in the Population Studies Center at Michigan's Institute for Social Research. Xie's main areas of interest are social stratification, demography, statistical methods, Chinese studies and sociology of science. He is a member of the American Academy of Arts and Sciences, Academia Sinica and the National Academy of Sciences. His recently published works include: Marriage and Cohabitation (University of Chicago Press 2007) with Arland Thornton and William Axinn, Statistical Methods for Categorical Data Analysis with Daniel Powers (Emerald 2008, second edition), and Is American Science in Decline? (Harvard University Press, 2012) with Alexandra Killewald. Xie earned his bachelor’s degree at Shanghai University of Technology, and two master’s degrees and a doctoral degree at the University of Wisconsin-Madison.