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A New Keynesian Open Economy Model for Policy Analysis

Author

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  • Carlin, Wendy
  • Soskice, David

Abstract

"Macroeconomics without the LM curve" has begun to move advanced undergraduate closed economy macroeconomics teaching models away from the IS/LM approach to simple versions of the New Keynesian models taught in graduate courses and used in central banks. But the equally traditional and antiquated Mundell-Fleming model still dominates undergraduate open economy macroeconomics. We develop a graphical and simplified New Keynesian model of the small open economy to replace it. The model features rational expectations in both the foreign exchange market and the central bank, and is well-suited to analyze how an inflation targeting central bank responds optimally to a variety of shocks. The graphical approach highlights how exchange rate expectations in the open economy impinge on the central bank’s decision-making. The basic model assumes the central bank targets domestic inflation and we show how a CPI inflation target modifies the analysis.

Suggested Citation

  • Carlin, Wendy & Soskice, David, 2010. "A New Keynesian Open Economy Model for Policy Analysis," CEPR Discussion Papers 7979, C.E.P.R. Discussion Papers.
  • Handle: RePEc:cpr:ceprdp:7979
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    References listed on IDEAS

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    1. 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 208-231, June.
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    Cited by:

    1. Jamie Murray, 2013. "Parameter Uncertainty and the Fiscal Multiplier," Treasury Working Paper Series 13/19, New Zealand Treasury.

    More about this item

    Keywords

    CPI inflation targeting; domestic inflation targeting; exchange rate overshooting; Mundell-Fleming model; New Keynesian open economy model; optimal monetary policy rule;

    JEL classification:

    • E1 - Macroeconomics and Monetary Economics - - General Aggregative Models
    • E3 - Macroeconomics and Monetary Economics - - Prices, Business Fluctuations, and Cycles
    • E4 - Macroeconomics and Monetary Economics - - Money and Interest Rates
    • E5 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit

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