Charles Loeffler

Charles Loeffler is an Associate Professor of Criminology at the Department of Criminology, University of Pennsylvania. His research focuses on life-course criminology, criminal justice institutions, and crime-technology intersections.

• Education: Ph.D. in Sociology from Harvard University (2011), M.Phil. in Criminology from Cambridge University (2002), A.B. in Social Studies from Harvard College (2001).

His work examines criminal record expungement, juvenile justice, gun violence patterns, and wrongful convictions. He develops measurement tools for analyzing incarceration effects, employment outcomes, and spatiotemporal crime dynamics using advanced statistical methods.

Recent publications include studies on gun violence contagion, property tax compliance experiments, and scalable forecasting algorithms for crime prediction. Articles emphasize interdisciplinary approaches combining criminology, computer science, and public policy.

Teaching includes courses on criminology, wrongful convictions, neighborhood crime dynamics, and experimental methods in criminal justice. Collaborators include Aaron Chalfin, Ben Grunwald, and Seth Flaxman.