Matthew A. Davis, Ph.D., MPH, is an assistant professor at the University of Michigan School of Nursing. His research focuses on leveraging large sources of data to study important health policy-relevant issues, with a particular interest applying data mining methods to health care claims data. He has studied the national use of health services over time for nonspecific back pain, and has been involved in the development of methods to use social media data to measure social support and public opinion.

Kenneth Langa, M.D., Ph.D., is the Cyrus Sturgis Professor in the Department of Internal Medicine and Institute for Social Research, a research scientist in the Veterans Affairs Center for Clinical Management Research, and an associate director of the Institute of Gerontology, all at the University of Michigan. He is also associate director of the Health and Retirement Study, a National Institute on Aging-funded longitudinal study of 20,000 adults in the United States