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: JASON G. CUMMINS, KEVIN A. HASSETT, and R. GLENN HUBBARD A Reconsideration of Investment Behavior Using Tax Reforms as Natural Experiments ROBERT E. CARPENTER, STEVEN M. FAZZARI, and BRUCE C. PETERSEN Inventory Investment, Internal-Finance Fluctuations, and the Business Cycle WILLIAM D. NORDHAUS Policy Games: Coordination and Independence in Monetary and Fiscal Policies PETER GOTTSCHALK and ROBERT MOFFITT The Growth of Earnings Instability in the U.S. Labor Market STEPHEN D. OLINER and DANIEL E. SICHEL Computers and Output Growth Revisited: How Big Is the Puzzle?