Zeng Yi is a Professor at the Center for Study of Aging and Human Development and Geriatric Division / Dept of Medicine of Medical School, and Institute of Population Research and Dept. of Sociology, Duke University. He is also a Professor at the China Center for Economic Research of Peking University in China, and Distinguished Research Scholar of the Max Planck Institute for Demographic Research (MPIDR) in Germany. He is Director of the Center for Chinese Population and Socioeconomic Studies at Duke University. He received his doctoral degree from Brussels Free University in May 1986, and conducted post-doctoral study at Princeton University in 1986-87. His primary research fields are: (1) population healthy aging and elderly health service and policy; (2) new methods of family households & living arrangements forecasting and its applications in socioeconomic and health services planning and policy analysis; (3) family dynamics & life course studies including marriage, divorce and cohabitation; (4) demographic, economic and social changes and their policy implications in elderly health care needs/costs and socioeconomic development in China. He has major research grants from NIA/NIH and other funding agencies. Up to Jan. 2006, he has had 76 professional articles written in English published in academic journals or as book chapters in the United States and Europe; among them, 48 articles were published in anonymous, peer-reviewed academic journals. He has had 72 professional articles written in Chinese and published in China; among them, 52 articles were published in National top Chinese academic journals. He has published fifteen books, including five research books (as first author), such as "Family Dynamics in China," published by the University of Wisconsin Press; one textbook on demographic methods (as the sole author); two volumes of demographic software and user's manuals (as the first author) on family status life table analysis; five edited books (three as the chief editor, and two as the second editor), such as the 2005 book published by Springer for which he served as the chief editor. Five of Zeng Yi's published books were written in English, one was written in both Chinese and English, and the remainder were written in Chinese. Zeng Yi has been awarded more than ten national and international academic prizes, such as the Dorothy Thomas Prize of the Population Association of America, the Harold D. Lasswell Prize in Policy Science awarded by the international journal Policy Sciences and Kluwer Academic Publishers, the second-class prize for outstanding achievement in science and technology advancement awarded by the State Sciences and Technology Commission of China, two first-class prizes for outstanding contribution in philosophy and social sciences awarded by the Ministry of Education, the first-class prize for an outstanding achievement in science and technology advancement awarded by the State Education Commission, and the highest academic honor of Peking University: "Prize for Outstanding Contributions in Sciences." According to the search report, up to October 16, 2004, the internationally most important literature sources SSCI (Social Science Citation Index) and SCI (Science Citation Index), published in the U.S., indicate that Zeng Yi's articles and books have been cited in 561 journal articles by authors other than Zeng Yi. Among them, 345 citations refer to the work of Zeng Yi as the first author; 216 citations refer to the work of Zeng Yi as a co-author. Zeng Yi is one of the authors of "High Impact Paper" worldwide in the period of 1981 -1998, as announced by International Scientific Institute (ISI) in September, 2000.