Xia Yiwei (夏一巍), Nemo, is currently an associate professor at the school of law, Southwestern University of Finance and Economics. He received B.A. in Engineering (Forensic Science) and Law (2012) from Southwest University of Political Science and Law (SWUPL), M.A. in Criminology (2015), and Ph.D. in Sociology (2019) from University of Macau. His work appears in China Review, Journal of Contemporary China, Sociological Methods & Research, Stata Journal, Journal of Criminal Justice, Justice Quarterly, Deviant Behavior & Social Science Review etc. His research interests include quantitative method, juvenile delinquency, addictive behavior, substance abuse, criminology & criminal justice, and social demography.