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When is Monetary Policy All we Need?

  • Leith, Campbell
  • Wren-Lewis, Simon

We consider optimal monetary and scal policies in a New Keynesian model of a small open economy with sticky prices and wages. In this benchmark setting monetary policy is all we need - analytical results demonstrate that variations in government spending should play no role in the stabilization of shocks. In extensions we show, rstly, that this is even when true when allowing for in ation inertia through backward-looking rule-of-thumb price and wage-setting, as long as there is no discrepancy between the private and social evaluation of the marginal rate of substitution between consumption and leisure. Secondly, the optimal neutrality of government spending is robust to the issuance of public debt. In the presence of debt government spending will deviate from the optimal steady-state but only to the extent required to cover the deficit, not to provide any additional macroeconomic stabilization. However, unlike government spending variations in tax rates can play a complementary role to monetary policy, as they change relative prices rather than demand.

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File URL: http://hdl.handle.net/10943/111
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Paper provided by Scottish Institute for Research in Economics (SIRE) in its series SIRE Discussion Papers with number 2009-25.

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Date of creation: 2009
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Handle: RePEc:edn:sirdps:111
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  1. Leith, Campbell & Wren-Lewis, Simon, 2006. "Compatibility between monetary and fiscal policy under EMU," European Economic Review, Elsevier, vol. 50(6), pages 1529-1556, August.
  2. Kirsanova, Tatiana & Satchi, Mathan & Vines, David & Wren-Lewis, Simon, 2006. "Optimal Fiscal Policy Rules in a Monetary Union," CEPR Discussion Papers 5533, C.E.P.R. Discussion Papers.
  3. Tatiana Kirsanova & Simon Wren‐Lewis, 2012. "Optimal Fiscal Feedback on Debt in an Economy with Nominal Rigidities," Economic Journal, Royal Economic Society, vol. 122(559), pages 238-264, 03.
  4. Jordi Galí & Tommaso Monacelli, 2005. "Optimal Monetary and Fiscal Policy in a Currency Union," Working Papers 240, Barcelona Graduate School of Economics.
  5. Schmitt-Grohé, Stephanie & Uribe, Martín, 2004. "Optimal Simple and Implementable Monetary and Fiscal Rules," CEPR Discussion Papers 4334, C.E.P.R. Discussion Papers.
  6. Fabian Eser, 2009. "Optimal Fiscal Stabilisation through Government Spending," Economics Papers 2009-W14, Economics Group, Nuffield College, University of Oxford.
  7. Stephanie Schmitt-Grohe & Martin Uribe, 2002. "Optimal Fiscal and Monetary Policy Under Sticky Prices," NBER Working Papers 9220, National Bureau of Economic Research, Inc.
  8. Stehn, Sven Jari & Vines, David, 2008. "Strategic Interactions between an Independent Central Bank and a Myopic Government with Government Debt," CEPR Discussion Papers 6913, C.E.P.R. Discussion Papers.
  9. Leith, Campbell & Wren-Lewis, Simon, 2012. "Fiscal Sustainability in a New Keynesian Model," SIRE Discussion Papers 2012-84, Scottish Institute for Research in Economics (SIRE).
  10. Leith, Campbell & Malley, Jim, 2005. "Estimated general equilibrium models for the evaluation of monetary policy in the US and Europe," European Economic Review, Elsevier, vol. 49(8), pages 2137-2159, November.
  11. Gianluca Benigno & Bianca De Paoli, 2009. "On the international dimension of fiscal policy," LSE Research Online Documents on Economics 28515, London School of Economics and Political Science, LSE Library.
  12. Jordi Galí & Tommaso Monacelli, 2004. "Monetary policy and exchange rate volatility in a small open economy," Economics Working Papers 835, Department of Economics and Business, Universitat Pompeu Fabra.
  13. Erceg, Christopher J. & Henderson, Dale W. & Levin, Andrew T., 2000. "Optimal monetary policy with staggered wage and price contracts," Journal of Monetary Economics, Elsevier, vol. 46(2), pages 281-313, October.
  14. Gali, Jordi & Gertler, Mark, 1999. "Inflation dynamics: A structural econometric analysis," Journal of Monetary Economics, Elsevier, vol. 44(2), pages 195-222, October.
  15. Kevin D. Sheedy, 2007. "Robustly Optimal Monetary Policy," CEP Discussion Papers dp0840, Centre for Economic Performance, LSE.
  16. Ravn, Morten O & Schmitt-Grohé, Stephanie & Uribe, Martín, 2004. "Deep Habits," CEPR Discussion Papers 4269, C.E.P.R. Discussion Papers.
  17. Steinsson, Jon, 2003. "Optimal monetary policy in an economy with inflation persistence," Journal of Monetary Economics, Elsevier, vol. 50(7), pages 1425-1456, October.
  18. Stehn, Sven Jari & Vines, David, 2008. "Debt Stabilisation Bias and the Taylor Principle: Optimal Policy in a New Keynesian Model with Government Debt and Inflation Persistence," CEPR Discussion Papers 6696, C.E.P.R. Discussion Papers.
  19. Tatiana Kirsanova & Campbell Leith & Simon Wren-Lewis, 2006. "Should Central Banks Target Consumer Prices or the Exchange Rate?," Economic Journal, Royal Economic Society, vol. 116(512), pages F208-F231, 06.
  20. Jordi Galí, 2007. "Constant interest rate projections without the curse of indeterminacy," Economics Working Papers 1057, Department of Economics and Business, Universitat Pompeu Fabra, revised Feb 2008.
  21. Pontiggia, Dario, 2007. "Inflation persistence and optimal positive long-run inflation," MPRA Paper 3274, University Library of Munich, Germany.
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