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Simple Analytics of the Government Expenditure Multiplier

  • Woodford, Michael

This paper explains the key factors that determine the effectiveness of government purchases as a means of increasing output and employment in New Keynesian models, through a series of simple examples that can be solved analytically. Delays in the adjustment of prices or wages can allow for larger multipliers than exist in the case of fully flexible prices and wages; in a fairly broad class of simple models, the multiplier is 1 in the case that the monetary authority maintains a constant path for real interest rates. The multiplier can be considerably smaller, however, if the monetary authority raises real interest rates in response to increases in inflation or real activity resulting from the fiscal stimulus. A large multiplier is especially plausible when monetary policy is constrained by the zero lower bound on nominal interest rates; in such a case, expected utility is maximized by expanding government purchases to at least partially fill the output gap that would otherwise exist owing to the central bank's inability to cut interest rates. However, it is important in such a case that neither the increased government purchases nor the increased taxes required to finance them be expected to persist beyond the period over which monetary policy is constrained by the zero lower bound.

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Paper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 7704.

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Date of creation: Feb 2010
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Handle: RePEc:cpr:ceprdp:7704
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  1. Christopher J. Nekarda & Valerie A. Ramey, 2011. "Industry Evidence on the Effects of Government Spending," American Economic Journal: Macroeconomics, American Economic Association, vol. 3(1), pages 36-59, January.
  2. Cogan, John F. & Cwik, Tobias J. & Taylor, John B. & Wieland, Volker, 2009. "New Keynesian versus old Keynesian government spending multipliers," CFS Working Paper Series 2009/17, Center for Financial Studies (CFS).
  3. Clarida, Richard & Galí, Jordi & Gertler, Mark, 1998. "Monetary Policy Rules and Macroeconomic Stability: Evidence and Some Theory," CEPR Discussion Papers 1908, C.E.P.R. Discussion Papers.
  4. S. Rao Aiyagari & Lawrence J. Christiano & Martin Eichenbaum, 1990. "The Output, Employment, and Interest Rate Effects of Government Consumption," NBER Working Papers 3330, National Bureau of Economic Research, Inc.
  5. Thorsten Drautzburg & Harald F. Uhlig, 2013. "Fiscal stimulus and distortionary taxation," Working Papers 13-46, Federal Reserve Bank of Philadelphia.
  6. Sheedy, Kevin D., 2010. "Intrinsic inflation persistence," Journal of Monetary Economics, Elsevier, vol. 57(8), pages 1049-1061, November.
  7. Miguel Almunia & Agustín S. Bénétrix & Barry Eichengreen & Kevin H. O'Rourke & Gisela Rua, 2009. "From Great Depression to Great Credit Crisis: Similarities, Differences and Lessons," The Institute for International Integration Studies Discussion Paper Series iiisdp303, IIIS.
  8. Lawrence J. Christiano & Martin Eichenbaum & Sergio Rebelo, 2010. "When is the government spending multiplier large?," FRB Atlanta CQER Working Paper 2010-01, Federal Reserve Bank of Atlanta.
  9. John B. Taylor, 1999. "Monetary Policy Rules," NBER Books, National Bureau of Economic Research, Inc, number tayl99-1, September.
  10. Cúrdia, Vasco & Woodford, Michael, 2009. "Conventional and Unconventional Monetary Policy," CEPR Discussion Papers 7514, C.E.P.R. Discussion Papers.
  11. Christopher J. Erceg & Jesper Linde, 2010. "Is there a fiscal free lunch in a liquidity trap?," International Finance Discussion Papers 1003, Board of Governors of the Federal Reserve System (U.S.).
  12. Gauti B. Eggertsson, 2009. "What fiscal policy is effective at zero interest rates?," Staff Reports 402, Federal Reserve Bank of New York.
  13. Vasco Cúrdia & Michael Woodford, 2009. "Credit frictions and optimal monetary policy," BIS Working Papers 278, Bank for International Settlements.
  14. Andrew Levin & Christopher J. Erceg & Dale W. Henderson, 1999. "Optimal Monetary Policy with Staggered Wage and Price Contracts," Computing in Economics and Finance 1999 1151, Society for Computational Economics.
  15. Robert J. Gordon & Robert Krenn, 2010. "The End of the Great Depression 1939-41: Policy Contributions and Fiscal Multipliers," NBER Working Papers 16380, National Bureau of Economic Research, Inc.
  16. Taylor, John B., 1993. "Discretion versus policy rules in practice," Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 39(1), pages 195-214, December.
  17. Baxter, Marianne & King, Robert G, 1993. "Fiscal Policy in General Equilibrium," American Economic Review, American Economic Association, vol. 83(3), pages 315-34, June.
  18. Christopher J. Nekarda & Valerie A. Ramey, 2013. "The Cyclical Behavior of the Price-Cost Markup," NBER Working Papers 19099, National Bureau of Economic Research, Inc.
  19. Gauti B. Eggertsson & Michael Woodford, 2003. "The Zero Bound on Interest Rates and Optimal Monetary Policy," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 34(1), pages 139-235.
  20. Julio J. Rotemberg & Michael Woodford, 1989. "Oligopolistic Pricing and the Effects of Aggregate Demand on Economic Activity," NBER Working Papers 3206, National Bureau of Economic Research, Inc.
  21. Mankiw, N. Gregory & Reis, Ricardo, 2002. "Sticky Information Versus Sticky Prices: A Proposal to Replace the New Keynesian Phillips Curve," Scholarly Articles 3415324, Harvard University Department of Economics.
  22. Robert E. Hall, 2009. "By How Much Does GDP Rise If the Government Buys More Output?," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 40(2 (Fall)), pages 183-249.
  23. John B. Taylor, 1999. "Introduction to "Monetary Policy Rules"," NBER Chapters, in: Monetary Policy Rules, pages 1-14 National Bureau of Economic Research, Inc.
  24. Robert J. Barro & Robert G. King, 1982. "Time-Separable Preference and Intertemporal-Substitution Models of Business Cycles," NBER Working Papers 0888, National Bureau of Economic Research, Inc.
  25. John B. Taylor, 1998. "An Historical Analysis of Monetary Policy Rules," NBER Working Papers 6768, National Bureau of Economic Research, Inc.
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