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Fiscal Unions

Author

Listed:
  • Emmanuel Farhi
  • Ivan Werning

Abstract

We study cross-country risk sharing as a second-best problem for members of a currency union using an open economy model with nominal rigidities and provide two key results. First, we show that, if financial markets are incomplete, the value of gaining access to any given level of aggregate risk sharing is greater for countries that are members of a currency union. Second, we show that, even if financial markets are complete, privately optimal risk sharing is constrained inefficient. A role emerges for government intervention in risk sharing to both guarantee its existence and to influence its operation. The constrained efficient risk sharing arrangement can be implemented by contingent transfers within a fiscal union. The benefits of such a fiscal union are larger, the bigger the asymmetric shocks affecting the members of the currency union, the more persistent these shocks, and the less open the member economies.

Suggested Citation

  • Emmanuel Farhi & Ivan Werning, 2017. "Fiscal Unions," Working Paper 198816, Harvard University OpenScholar.
    • Handle: RePEc:qsh:wpaper:198816
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    File URL: http://scholar.harvard.edu/farhi/node/198816
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    JEL classification:

    • E62 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - Fiscal Policy; Modern Monetary Theory
    • E63 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - Comparative or Joint Analysis of Fiscal and Monetary Policy; Stabilization; Treasury Policy
    • F02 - International Economics - - General - - - International Economic Order and Integration
    • F15 - International Economics - - Trade - - - Economic Integration
    • F3 - International Economics - - International Finance
    • F40 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - General

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