For almost thirty years, Brookings Papers on Economic Activity (BPEA) has provided academic and business economists, government officials, and members of the financial and business communities with timely research of current economic issues. Contents include: A Reconsideration of Investment Behavior Using Tax Reforms as Natural Experiments, Jason G. Cummins, Kevin A. Hassett, and R. Glenn Hubbard Inventory Investment, Internal-Finance Fluctuations, and the Business Cycle, Robert E. Carpenter, Steven M. Fazzari, and Bruce C. Petersen Policy Games: Coordination and Independence in Monetary and Fiscal Policies, William D. Nordhaus The Growth of Earnings Instability in the U.S. Labor Market, Peter Gottschalk and Robert Moffitt Computers and Output Growth Revisited: How Big Is the Puzzle?, Stephen D. Oliner and Daniel E. Sichel