Luke is director of the Center for Public Health Systems Science at the Brown School. He is a leading researcher in the areas of health policy, organizational systems, and tobacco control. Luke directs work focused primarily on the evaluation, dissemination, and implementation of evidence-based public health policies.
During the past decade, Luke has used systems science methods, especially social network analysis, to address important public health problems. He published the first review paper on network analysis in public health in 2007. In 2010, he published the results of the first study employing new statistical network modeling techniques on public health data. Luke’s center has used network analysis to study diffusion of scientific innovations, to model the formation of organizational collaborations, and to develop a blueprint of state tobacco control programs.