N. Gregory Mankiw is Robert M. Beren Professor of Economics at Harvard University. As a student, he studied economics at Princeton University and the Massachusetts Institute of Technology. As a teacher, he has taught macroeconomics, microeconomics, statistics and principles of economics. Professor Mankiw is a prolific writer and a regular participant in academic and policy debates. His work has been published in scholarly journals such as the American Economic Review, Journal of Political Economy and Quarterly Journal of Economics. In addition to his teaching, research and writing, Professor Mankiw has been a research associate of the National Bureau of Economic Research, an advisor to the Federal Reserve Banks of Boston and New York, and the Congressional Budget Office. From 2003 to 2005 he served as chairman of the US President�s Council of Economic Advisors.