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Optimal monetary policy in open economies revisited

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  • Fujiwara, Ippei
  • Wang, Jiao

Abstract

This paper revisits optimal monetary policy in open economies, in particular, focusing on the noncooperative policy game under local currency pricing in a two-country dynamic stochastic general equilibrium model. We first derive the quadratic loss functions which noncooperative policy makers aim to minimize. Then, we show that noncooperative policy makers face extra trade-offs regarding stabilizing real marginal costs induced by deviations from the law of one price under local currency pricing, and that optimal monetary policy seeks to stabilize CPI inflation rates and more so under noncooperation than it does under cooperation. As a result of the increased number of stabilizing objectives, welfare gains from cooperation emerge even when two countries face only technology shocks. Still, gains from cooperation are not large, implying that frictions other than nominal rigidities are necessary to strongly recommend cooperation as an important policy framework to increase global welfare.

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  • Fujiwara, Ippei & Wang, Jiao, 2017. "Optimal monetary policy in open economies revisited," Journal of International Economics, Elsevier, vol. 108(C), pages 300-314.
    • Handle: RePEc:eee:inecon:v:108:y:2017:i:c:p:300-314
    DOI: 10.1016/j.jinteco.2017.07.006
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    4. Stéphane Auray & Devereux Michael B. & Aurélien Eyquem, 2020. "Trade Wars, Currency Wars," Post-Print halshs-03031833, HAL.
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    7. Zhao, Hong, 2022. "On the impacts of trend inflation in an open economy," Journal of International Economics, Elsevier, vol. 138(C).
    8. Fujiwara, Ippei & Kam, Timothy & Sunakawa, Takeki, 2019. "Sustainable international monetary policy cooperation," Journal of Economic Dynamics and Control, Elsevier, vol. 106(C), pages 1-1.
    9. Taojun Xie & Jiao Wang & Shiqi Liu, 2021. "Impact of Travel Bubbles: Cooperative Travel Arrangements in a Pandemic," Melbourne Institute Working Paper Series wp2021n10, Melbourne Institute of Applied Economic and Social Research, The University of Melbourne.
    10. Liutang Gong & Jianjian Liu & Chan Wang & Liyuan Wu & Heng-fu Zou, 2020. "International trade in intermediate inputs and the welfare gains from monetary policy cooperation," CEMA Working Papers 610, China Economics and Management Academy, Central University of Finance and Economics.
    11. Sara Eugeni, 2019. "Exchange rate volatility and cooperation in an incomplete markets' economy," Department of Economics Working Papers 2019_02, Durham University, Department of Economics.
    12. Peter Wamalwa, 2018. "Optimal Monetary Policy with Output and Asset Price Volatility in an Open Economy: Evidence from Kenya," Working Papers 734, Economic Research Southern Africa.
    13. Okano, Mitsuhiro, 2021. "Optimal monetary policy in a two-country new Keynesian model with deep consumption habits," MPRA Paper 110259, University Library of Munich, Germany.
    14. Kim, Myunghyun, 2023. "Gains from monetary policy cooperation under asymmetric currency pricing," European Economic Review, Elsevier, vol. 151(C).
    15. Olatunji Abdul Shobande & Oladimeji Tomiwa Shodipe, 2021. "Monetary Policy Interdependency in Fisher Effect: A Comparative Evidence," Journal of Central Banking Theory and Practice, Central bank of Montenegro, vol. 10(1), pages 203-226.
    16. J. Scott Davis & Ippei Fujiwara & Jiao Wang, 2018. "Dealing with Time Inconsistency: Inflation Targeting versus Exchange Rate Targeting," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 50(7), pages 1369-1399, October.
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    18. Ida, Daisuke, 2023. "Liquidity-constrained consumers and optimal monetary policy in a currency union," Journal of International Money and Finance, Elsevier, vol. 131(C).

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    More about this item

    Keywords

    Optimal monetary policy; Noncooperative game; Local currency pricing;
    All these keywords.

    JEL classification:

    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • F41 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - Open Economy Macroeconomics
    • F42 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - International Policy Coordination and Transmission

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