1 Yuka Asada is with the School of Public Health, University of Illinois, Chicago. Rachel Bleiweiss-Sande is with Mathematica in Princeton, NJ. Carolyn Barnes is with the Crown Family School of Social Work, Policy, and Practice, The University of Chicago. Hannah Lane is with the Department of Population Health Sciences, School of Medicine, Duke University, Durham, NC. Jamie F. Chriqui is with the Division of Health Policy Research, Institute for Health Research and Policy, and Department of Health Policy and Administration, School of Public Health, University of Illinois, Chicago. Yuka Asada and Rachel Bleiweiss-Sande are also Guest Editors for this supplement issue.