Guyu Sun is a PhD candidate in the Department of Criminology and Criminal Justice at the University of Maryland, where she also earned her MA in 2025. She received her BSocSc in Sociology (Honors) from the University of Macau in 2022.

Her research examines inequalities in punishment and their collateral consequences, with a particular focus on the experiences of children and adolescents and the roles of peers, parents, teachers, and school contexts. She is also interested in labeling theories and the role of stigma and labeling in different contexts. To address these questions, her work draws on diverse methodological approaches, including social network analysis, longitudinal and multilevel modeling, qualitative content analysis, and randomized experiments.

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Areas of Interest

  • School and Crime
  • Justice-Involved Youth
  • Stigma and Labeling Theories
CV: CV_Guyu Sun_Oct 25278.65 KB

Degrees

  • Degree Type
    BSocSc
    Degree Details
    Sociology, University of Macau, 2022
  • Degree Type
    MA
    Degree Details
    Criminology and Criminal Justice, University of Maryland, 2025

Awards

  • 2025 ACCCJ Student Travel Award, Association of Chinese Criminology and Criminal Justice in the United State
  • 2025 ASC Gene Carte Student Paper Award, Third Place, American Society of Criminology
  • 2025 Dr. Anat Kimchi Memorial Graduate Travel Award, University of Maryland
  • 2022–2025 Dean’s Fellowship, University of Maryland
  • 2021 Best Paper Award, Asian Criminological Society
  • 2022 Macau Foundation Academic Prize

Research

  • Sun, Guyu & Tony Huiquan Zhang. (2025). Peer influence on youth delinquency: How does school-level teacher quality matter? Crime & Delinquency, 71(10), 3391-3416.
  • Xu, J., Wang, X., & Sun, G. (2024). Sacrifice spirit and police work-family conflict among rank-and-file officers in China. Policing and Society, 34(3), 183-199.
  • Xu, J., Sun, G., Wu, S., Zhu, S., & Zhou, Y. (2024). Understanding health fraud offenders in China: An emotional labour perspective. Asian Journal of Law and Society, 11(1), 54-69.
  • Xu, J., Sun, G., Cao, W., Fan, W., Pan, Z., Yao, Z., & Li, H. (2021). Stigma, discrimination, and hate crimes in Chinese-speaking world amid Covid-19 pandemic. Asian Journal of Criminology, 16(1), 51-74.
  • Xu, J., Lao, T. I., Sun, G., & Yao, Z. (2021). The impact of the Covid-19 pandemic on crimes in Macao: A routine activity approach. Journal of Macau Studies, 100, 17-34. (In Chinese)
Campus
CCJS Department Smackdown Coordinator, Fall 2023-Spring 2024
Campus
Journal Club Co-Lead, Maryland Population Research Center, Fall 2024-Present
Professional
Student Office Manager, Association of Chinese Criminology and Criminal Justice in the US, 2025-2026
Guyu Sun
2220AA Lefrak Hall
Department of Criminology and Criminal Justice
Email
guyusun [at] umd.edu
Office Hours
Mon 2-4 pm