Robert M. Solow is Institute Professor Emeritus at the Massachusetts Institute of Technology, where he was a professor of economics since 1949. He taught macroeconomics and other subjects to undergraduate and graduate students until January, 1996. Professor Solow studied at Harvard and received the Nobel Prize in Economics in 1987 for his theory of growth. For a number of years he served as a member of the Board of Directors of the Federal Reserve Bank of Boston and was Chairman of that Board for three years. He is past president of the American Academy of Sciences, a Fellow of the British Academy, and a former member of the National Science Board. He received the National Medal of Science in 2000. He has written articles and books on economic growth, macroeconomics, and the theory of unemployment, as well as occasional reviews in The New York Review of Books and The New Republic. Some of the books for which he is most noted include Capital Theory and the Rate of Return (1963); Growth Theory: an Exposition (1970); Made in America: Regaining the Productive Edge (with M. Dertouzos, R. Lester and the MIT Commission on Industrial Productivity, 1989); the Labor Market as a Social Institution (1990); and A Critical Essay on Modern Macroeconomic Theory (with Frank Han, 1995). He is currently Foundation Scholar at the Russell Sage Foundation. Janice Murray spent 20 years at The Massachusetts Institute of Technology, working with economists Robert M. Solow and Paul A. Samuelson. For the MIT Press she edited Volumes 6 and 7 of The Collected Scientific Papers of Paul A. Samuelson, published in 2011. She lives in Boston, Massachusetts.