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The political economy of currency unions

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  • Arvai, Kai

Abstract

How can monetary and fiscal policy sustain a currency union when member states have an exit option? This paper derives an interest rate rule that features state-dependent country weights with which the central bank can prevent a break-up. A simulation reveals that this policy rule lacks firepower and can only extend the lifetime of the union for a while. While monetary policy is more potent in unions with more member states or setups with local currency pricing, it is still true that even a simple fiscal union with lump-sum transfers is better suited to prevent a break-up. Environments with lower risk sharing, the ZLB or wage rigidity make monetary policy even less effective.

Suggested Citation

  • Arvai, Kai, 2024. "The political economy of currency unions," Journal of International Economics, Elsevier, vol. 152(C).
  • Handle: RePEc:eee:inecon:v:152:y:2024:i:c:s0022199624001181
    DOI: 10.1016/j.jinteco.2024.103991
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    More about this item

    Keywords

    Currency union; Monetary policy; Lack of commitment; Exit option; Fiscal policy;
    All these keywords.

    JEL classification:

    • E42 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Monetary Sytsems; Standards; Regimes; Government and the Monetary System
    • E52 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Monetary Policy
    • E61 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - Policy Objectives; Policy Designs and Consistency; Policy Coordination
    • F33 - International Economics - - International Finance - - - International Monetary Arrangements and Institutions
    • F45 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - Macroeconomic Issues of Monetary Unions

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