elected to the Tennessee House of Representatives, where he served for five terms, holding the positions of majority leader and chair of the Select Committee on Children and Youth. After retiring from the General Assembly, Mr. Purcell founded and became director of the Child and Family Policy Center at the Vanderbilt Institute of Public Policy Studies. He was a member of the IOM Committee on an Evidence Framework for Obesity Prevention Decision Making. Mr. Purcell graduated from Hamilton College and Vanderbilt University School of Law.

David V. B. Britt, M.P.A., is retired president and chief executive officer of Sesame Workshop. Mr. Britt’s professional experience includes executive positions with the U.S. Agency for International Development, the Equal Employment Opportunity Commission, and the Overseas Private Investment Corporation. Since his retirement, Mr. Britt has been engaged in consulting and leadership development for nonprofit organizations. He is currently chair of the board of directors of The Education Trust. Mr. Britt has been a member of the Advisory Board on Social Enterprise at the Harvard Business School, and is a member of the Council on Foreign Relations and the Board of INMED Partnerships for Children. He is a former member of the IOM/NRC Board on Children, Youth, and Families. He served as a member of the IOM Committee on Obesity Prevention Policies for Young Children and of the IOM Committee on Food Marketing and the Diets of Children and Youth. Mr. Britt received a B.A. from Wesleyan University and an M.P.A. from the John F. Kennedy School of Government at Harvard University.

Jamie F. Chriqui, Ph.D., M.H.S., is a senior research scientist and director of policy surveillance and evaluation for the Health Policy Center within the Institute for Health Research and Policy at the University of Illinois at Chicago (UIC) and a research associate professor in political science at UIC. She has more than 21 years’ experience conducting public health policy research, evaluation, and analysis, with an emphasis on obesity, substance abuse, tobacco control, and other chronic disease-related policy issues. Her research interests focus on examining the impact of law and policy on community and school environments, as well as individual behaviors and attitudes. Her current research focuses heavily on sugar-sweetened beverage taxation, school district wellness policies, and community policies related to the physical activity and food environments. Dr. Chriqui directs all state, local, and school district policy research activities for the Robert Wood Johnson Foundation-supported Bridging the Gap program and is principal investigator or co-investigator on several National Institutes of Health (NIH)–funded

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