His research interests include the economic and health system impact of population aging and noncommunicable disease; interactions between self-care, informal care, and formal care interfaces; and health, education, and labor market outcomes over the life course. He received his MD (1997) and master of public health (2003) degrees from Seoul National University, subsequently completing his PhD in Health Policy and Management (2008) at the University of North Carolina at Chapel Hill. He was the inaugural Asia Health Policy postdoctoral fellow at the Shorenstein Asia-Pacific Research Center,(2008−9).