Xiushi Yang is professor of sociology and criminal Justice at Old Dominion University. He completed his Economic Geography at Hangzhou University, China and his master's degree and doctorate in Sociology (with a concentration in Population Studies) at Brown University. His teaching and research areas have included social demography, health behavior, migration and urbanization, and applied statistics. international political economy, international development, globalization, and Latin American politics. Dr. Yang is the author of numerous articles published in such distinguished journals as European Journal of Population and International Migration Review.