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International policy spillovers at the zero lower bound

  • Alex Haberis
  • Anna Lipinska

In this paper, we consider how monetary policy in a large, foreign economy affects optimal monetary policy in a small open economy (`home') in response to a large global demand shock that pushes both economies to the zero lower bound (ZLB) on nominal interest rates. We show that the inability of foreign monetary policy to stabilise the foreign economy at the ZLB creates a spillover that affects how well the home policymaker is able to stabilise its own economy. We show that more stimulatory foreign policy worsens the home policymaker's trade-off between stabilising inflation and the output gap when home and foreign goods are close substitutes. This reflects the fact that looser foreign policy leads to a relatively more appreciated home real exchange rate, which induces large expenditure switching away from home goods when goods are highly substitutable--just at a time (at the ZLB) when home policy is trying to boost demand for home goods. When goods are not close substitutes the home policymaker's ability to stabilise the economy benefits from more stimulatory foreign policy.

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Paper provided by Board of Governors of the Federal Reserve System (U.S.) in its series Finance and Economics Discussion Series with number 2012-23.

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Date of creation: 2012
Date of revision:
Handle: RePEc:fip:fedgfe:2012-23
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  1. Benigno, Pierpaolo & López-Salido, David, 2002. "Inflation persistence and optimal monetary policy in the euro area," Working Paper Series 0178, European Central Bank.
  2. Coenen, Guenter & Wieland, Volker, 2003. "The Zero-Interest-Rate and the Role of the Exchange Rate for Monetary Policy in Japan," CFS Working Paper Series 2003/09, Center for Financial Studies (CFS).
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  11. Anton Nakov, 2008. "Optimal and Simple Monetary Policy Rules with Zero Floor on the Nominal Interest Rate," International Journal of Central Banking, International Journal of Central Banking, vol. 4(2), pages 73-127, June.
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  15. Giancarlo Corsetti & Paolo Pesenti, 2001. "Welfare and Macroeconomic Interdependence," The Quarterly Journal of Economics, Oxford University Press, vol. 116(2), pages 421-445.
  16. Gianluca Benigno & Pierpaolo Benigno, 2004. "Designing Target Rules for International Monetary Policy Cooperation," CEP Discussion Papers dp0666, Centre for Economic Performance, LSE.
  17. Benigno, Gianluca & Benigno, Pierpaolo, 2003. "Designing targeting rules for international monetary policy cooperation," Working Paper Series 0279, European Central Bank.
  18. Adam, Klaus & Billi, Roberto M., 2005. "Discretionary monetary policy and the zero lower bound on nominal interest rates," CFS Working Paper Series 2005/16, Center for Financial Studies (CFS).
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