William C. Hsiao is the K.T. Li Professor of Economics, Emeritus, at the Harvard T.H. Chan School of Public Health. He earned his Ph.D. in Economics from Harvard University and is also a fully qualified actuary, with extensive expertise in both private and social health insurance  systems.  He became a leading global expert on single payer health systems in recent years.

The Taiwanese government awarded him the Presidential Medal--Order of Brilliant Star for leading the task force that designed Taiwan’s landmark Universal Health Insurance system—a model widely regarded as one of the most successful in the world.

Recognized as a leading global authority on national health system reform, Hsiao combines economic theory with empirical research to craft innovative solutions. He has helped design universal health insurance programs in countries and societies including the United States, China, Taiwan, Colombia, Malaysia, Vietnam, Hong Kong, Sweden, Cyprus, Uganda, and South Africa. 

Hsiao has published more than 200 papers and several books. He is an elected member of the U.S. National Academy of Medicine, the National Academy of Social Insurance, and Fellow, U.S. Society of Actuaries. He has advised three U.S. presidents, the U.S. Congress, and international organizations such as the World Bank, International Monetary Fund, World Health Organization, and International Labour Organization. He also received the Graham Prize Award for the most distinguished health services researcher. Several universities have conferred upon him honorary doctoral degrees and professorships in recognition of his global impact on health policy.