Roosa Tikkanen, M.P.H., M.Res., is a senior research associate in The Commonwealth Fund's International Program in Health Policy and Practice Innovations, where she tracks health care policy developments in industrialized countries; provides research support to and co-authors the Fund’s annual international health policy surveys; provides support for the International Issue Briefs and Case Study series; authors selected Issue Briefs and an annual OECD Data Brief; co-edits and coordinates the International Health Policy Newsletter; and prepares presentations for the vice president. Before joining the Fund, she was a policy analyst at the Center for Health Law and Economics at Commonwealth Medicine based at UMass Medical School in Boston, where she worked with state agencies estimating the costs and feasibility of programs aimed at improving access to services for populations with complex care needs. Prior to this, she worked for Massachusetts Representative Jeffrey Sanchez, House Chair of the Joint Commission on Health Care Financing, where she summarized and modelled the potential impact of bills pertaining to provider, payer, and pharmaceutical regulations. After completing the 2015 Margaret Mahoney Fellowship, Ms. Tikkanen led a research study at the City University of New York on charity care provision and disparities in access to NYC hospitals. Following a career as a medical writer in the U.K. from 2010 until 2013, she worked at Stord/Haugesund University College in Norway as a research assistant. Ms. Tikkanen holds a B.Sc. in neuroscience and a master of research in integrative biology from the University of Manchester in England, and an M.P.H. from the Harvard T.H. Chan School of Public Health.