Ronald Lee is a demographer and economist, with a MA in Demography from Berkeley and a Ph.D. in Economics from Harvard. Since 1979 he has been at the University of California at Berkeley, currently as a Professor of the Graduate School in Demography and Economics. He is the founding Director of the Center for the Economics and Demography of Aging at Berkeley, now Associate Director. Throughout his career, he has taught economic demography. His current research focuses on the macroeconomic consequences of changing population age distributions and on intergenerational transfers and population aging. For 18 years he co-directed with Andrew Mason the National Transfer Accounts project, which includes collaborating research teams in more than 60 countries, and estimates intergenerational flows of resources through the public and private sectors (NTAccounts.org). He continues to work on modeling and forecasting demographic variables including mortality and on evolutionary biodemography, in particular the role of intergenerational transfers in life history theory. From 2010-2015 he co-chaired a National Academy of Sciences Committee on the Long-run Macroeconomic Effects of the Aging U.S. Population. He is an elected member of the US National Academy of Sciences, American Association for the Advancement of Science, American Academy of Arts and Sciences, the American Philosophical Society, and a Corresponding Fellow of the British Academy; he is a former President of the Population Association of America and a Laureate of the international population association, the IUSSP. He holds honorary doctorates from the universities of Lund and Montreal.