Lai Wei is a Ph.D. student in the Department of Sociology at Princeton University. He graduated from Tsinghua University in 2018 with a BA in sociology. His research interests include social stratification, political sociology and public opinion particularly in the context of China. He is broadly interested in the political origins and consequences of inequality. One of his current research projects analyzes the roles of macro-structural changes, like educational expansion and private sector expansion, in the mobility trends in China in recent decades. Another project analyzes how the changing mobility pattern translates into public opinion using a novel methodology, with a focus on reference group and relative deprivation. He is also studying how public opinions in contemporary China are shaped by propaganda, political events, and historical memory.