Christopher R. Browning (Ph.D. University of Chicago, 1997) is University Distinguished Scholar and ASC Distinguished Professor of Sociology. His research interests include the causes and consequences of community social organization; the neighborhood context of crime, risk behavior, and health; and multilevel statistical models. His current projects apply the concepts of activity space and ecological networks to research on the mechanisms linking contextual exposures (e.g., neighborhoods and schools) to youth behavioral health and well-being. He is Principal Investigator on the Adolescent Health and Development in Context (AHDC) study - a large scale, longitudinal investigation of the link between sociospatial exposures and developmental outcomes among youth in Franklin County, OH. The project is funded by NIDA, NICHD, the WT Grant Foundation, and the National Science Foundation.