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Currency Union with and without Banking Union


  • Bignon, V.
  • Breton, R.
  • Rojas Breu, M.


This paper analyzes a two-country model of currency, banks and endogenous default to study whether impediments to credit market integration across jurisdictions impact the desirability of a currency union. We show that when those impediments induce a higher cost for banks to manage cross-border credit compared to domestic credit, welfare may not be maximal under a regime of currency union. But a banking union that would suppress hurdles to banking integration restores the optimality of that currency arrangement. The empirical and policy implications in terms of banking union are discussed.

Suggested Citation

  • Bignon, V. & Breton, R. & Rojas Breu, M., 2013. "Currency Union with and without Banking Union," Working papers 450, Banque de France.
  • Handle: RePEc:bfr:banfra:450

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    References listed on IDEAS

    1. Thomas J. Sargent, 2012. "Nobel Lecture: United States Then, Europe Now," Journal of Political Economy, University of Chicago Press, vol. 120(1), pages 1-40.
    2. Pedro Gomis‐Porqueras & Daniel Sanches, 2013. "Optimal Monetary Policy in a Model of Money and Credit," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 45(4), pages 701-730, June.
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    8. Clerc, Laurent & Dellas, Harris & Loisel, Olivier, 2011. "To be or not to be in monetary union: A synthesis," Journal of International Economics, Elsevier, vol. 83(2), pages 154-167, March.
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    Cited by:

    1. Liu, Tao, 2016. "Trade finance and international currency: a moneatary search approach," MPRA Paper 68834, University Library of Munich, Germany.
    2. Athanasios Geromichalos & Kuk Mo Jung, 2014. "An Over-the-Counter Approach to the FOREX Market," Working Papers 144, University of California, Davis, Department of Economics.
    3. Belke, Ansgar & Gros, Daniel, 2015. "Banking Union as a Shock Absorber," Ruhr Economic Papers 548, RWI - Leibniz-Institut für Wirtschaftsforschung, Ruhr-University Bochum, TU Dortmund University, University of Duisburg-Essen.
    4. repec:zbw:rwirep:0548 is not listed on IDEAS
    5. Ansgar Belke & Daniel Gros, 2015. "Banking Union as a Shock Absorber," Ruhr Economic Papers 0548, Rheinisch-Westfälisches Institut für Wirtschaftsforschung, Ruhr-Universität Bochum, Universität Dortmund, Universität Duisburg-Essen.
    6. Diego Valiante, 2015. "Banking union in a single currency area: evidence on financial fragmentation," Journal of Financial Economic Policy, Emerald Group Publishing, vol. 7(3), pages 251-274, August.

    More about this item


    banks; currency union; credit; default; limited commitment.;

    JEL classification:

    • E42 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Monetary Sytsems; Standards; Regimes; Government and the Monetary System
    • E50 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - General
    • F3 - International Economics - - International Finance
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages

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