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What inflation measure should a currency union target?

Author

Listed:
  • Barnett, William A.
  • Wang, Chan
  • Wang, Xue
  • Wu, Liyuan

Abstract

What is the appropriate inflation target for a currency union, when conducting monetary policy: core inflation or headline inflation? We answer the question in a two-country New Keynesian model with an energy sector. We derive the welfare loss function and find that optimal monetary policy should target output gaps, the terms of trade gap, the Prouder Price Index inflation rates, and the real marginal cost gaps. We use the welfare loss function to evaluate two alternative Taylor-type monetary policy rules. We find that the choice of preferred policy rule depends on the shocks. Specifically, when productivity shocks hit the economy, the policymaker should follow the headline inflation Taylor rule, while the core inflation Taylor rule should be followed when a negative energy endowment shock hits the economy.

Suggested Citation

  • Barnett, William A. & Wang, Chan & Wang, Xue & Wu, Liyuan, 2018. "What inflation measure should a currency union target?," MPRA Paper 87035, University Library of Munich, Germany.
  • Handle: RePEc:pra:mprapa:87035
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    More about this item

    Keywords

    Core inflation; Headline inflation; Optimal monetary policy; Currency union; Welfare.;

    JEL classification:

    • E5 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit
    • F3 - International Economics - - International Finance
    • F4 - International Economics - - Macroeconomic Aspects of International Trade and Finance

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