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Policy Rules and External Shocks

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  • Laurence Ball

Abstract

This essay discusses rules for monetary policy in open economies. If policymakers seek to stabilize output and inflation, optimal rules in open economies differ considerably from optimal rules in closed economies. In open economies, stability is best achieved by targeting long-run inflation' a measure of inflation adjusted to remove transitory effects of exchange-rate movements. Stability is also enhanced by adding an exchange-rate term to "Taylor rules" for setting interest rates. Finally, central banks must choose whether their policy instrument is an interest rate or a "monetary conditions index": an average of the interest rate and the exchange rate. The nature of shocks to the exchange rate determines which of these choices keeps output and inflation more stable.

Suggested Citation

  • Laurence Ball, 2000. "Policy Rules and External Shocks," NBER Working Papers 7910, National Bureau of Economic Research, Inc.
  • Handle: RePEc:nbr:nberwo:7910
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    References listed on IDEAS

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    1. Laurence M. Ball, 1999. "Policy Rules for Open Economies," NBER Chapters,in: Monetary Policy Rules, pages 127-156 National Bureau of Economic Research, Inc.
    2. William Poole, 1970. "Optimal Choice of Monetary Policy Instruments in a Simple Stochastic Macro Model," The Quarterly Journal of Economics, Oxford University Press, vol. 84(2), pages 197-216.
    3. Philip Lowe & Luci Ellis, 1997. "The Smoothing of Official Interest Rates," RBA Annual Conference Volume,in: Philip Lowe (ed.), Monetary Policy and Inflation Targeting Reserve Bank of Australia.
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    More about this item

    JEL classification:

    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • E58 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Central Banks and Their Policies

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