Ronald Lee is professor emeritus of demography and economics at UC Berkeley, and is associate director and founder of the campus's Center on the Economics and Demography of Aging. He co-directs the National Transfer Accounts, a project that estimates intergenerational transfers through the family and the public sector in 28 countries around the world. Lee' s research also seeks to answer such evolutionary questions as: Why do humans and a few other species have extensive post-reproductive survival? How are these patterns related to intergenerational transfers and parental investment in offspring? Why is human fertility so low? He also works on long term demographic and fiscal projections, and population aging and its consequences. Prior to joining UC Berkeley, Lee taught at the University of Michigan and spent his postdoctoral year at the National Institute of Demographic Studies in France. After receiving his B.A. in philosophy from Reed College, he served for two years in the Peace Corps in Ethiopia where he taught high school math, physics and history. He holds a Ph.D. in economics from Harvard University and an M.A. in demography from UC Berkeley.