The NBER International Seminar on Macroeconomics brings together leading American and European economists to discuss a broad range of current issues in global macroeconomics. An international companion to the more American-focused NBER Macroeconomics Annual, the 2005 volume first explores macroeconomic issues of interest to all advanced economies, then analyzes topical questions concerning the eastward expansion of the European Monetary Union.Jeffrey A. Frankel is James W. Harpel Professor of Capital Formation and Economic Growth at Harvard University's John F. Kennedy School of Government. Christopher A. Pissarides is Professor of Economics at the London School of Economics. Both are Research Associates at the National Bureau of Economic Research.