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Does the Law of One Price Hold in Euro-Area Retail Banking? An Empirical Analysis of Interest Rate Differentials across the Monetary Union

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  • Massimiliano Affinito

    (Bank of Italy)

  • Fabio Farabullini

    (Bank of Italy)

Abstract

To measure integration, economic theory provides a clear background regarding price convergence: the law of one price. This paper is the first test of this law in euro-area retail banking. Since the law can be verified only on similar assets, we use recent harmonized data and a methodology that renders banking products homogeneous across countries, controlling for national factors. Econometric results signal that rates differ, and that markets are still segmented, because banking services are differentiated. Since supply factors play a driving role, there is room for improved integration. Moreover, where bank customers are stronger, rates are more homogeneous.

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  • Massimiliano Affinito & Fabio Farabullini, 2009. "Does the Law of One Price Hold in Euro-Area Retail Banking? An Empirical Analysis of Interest Rate Differentials across the Monetary Union," International Journal of Central Banking, International Journal of Central Banking, vol. 5(1), pages 5-37, March.
  • Handle: RePEc:ijc:ijcjou:y:2009:q:1:a:1
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    Cited by:

    1. Affinito, Massimiliano, 2012. "Do interbank customer relationships exist? And how did they function in the crisis? Learning from Italy," Journal of Banking & Finance, Elsevier, vol. 36(12), pages 3163-3184.
    2. Kraemer-Eis, Helmut & Botsari, Antonia & Gvetadze, Salome & Lang, Frank & Torfs, Wouter, 2019. "European Small Business Finance Outlook: June 2019," EIF Working Paper Series 2019/57, European Investment Fund (EIF).
    3. Kraemer-Eis, Helmut & Botsari, Antonia & Gvetadze, Salome & Lang, Frank & Torfs, Wouter, 2017. "European Small Business Finance Outlook: December 2017," EIF Working Paper Series 2017/46, European Investment Fund (EIF).
    4. Kraemer-Eis, Helmut & Botsari, Antonia & Gvetadze, Salome & Lang, Frank & Torfs, Wouter, 2019. "European Small Business Finance Outlook: December 2019," EIF Working Paper Series 2019/61, European Investment Fund (EIF).
    5. Massimiliano Affinito, 2011. "Convergence clubs, the euro-area rank and the relationship between banking and real convergence," Temi di discussione (Economic working papers) 809, Bank of Italy, Economic Research and International Relations Area.
    6. Kraemer-Eis, Helmut & Botsari, Antonia & Gvetadze, Salome & Lang, Frank & Torfs, Wouter, 2020. "European Small Business Finance Outlook 2020: The impact of COVID-19 on SME financing markets," EIF Working Paper Series 2020/67, European Investment Fund (EIF).
    7. Kraemer-Eis, Helmut & Botsari, Antonia & Gvetadze, Salome & Lang, Frank & Torfs, Wouter, 2018. "European Small Business Finance Outlook: June 2018," EIF Working Paper Series 2018/50, European Investment Fund (EIF).
    8. Gheorghe Morosan, 2014. "Integration Of The Romanian Retail Banking System In Eu. The Interest Rates Convergence," Annals - Economy Series, Constantin Brancusi University, Faculty of Economics, vol. 4, pages 45-59, August.
    9. Anton, Sorin Gabriel & Avadanei, Andreea, 2010. "The implications of European retail banking integration on small and medium-sized enterprises financing. An overview," MPRA Paper 28660, University Library of Munich, Germany.
    10. Kraemer-Eis, Helmut & Lang, Frank & Torfs, Wouter & Gvetadze, Salome, 2016. "European Small Business Finance Outlook: December 2016," EIF Working Paper Series 2016/37, European Investment Fund (EIF).
    11. Wagenvoort, Rien J.L.M. & Ebner, André & Morgese Borys, Magdalena, 2011. "A factor analysis approach to measuring European loan and bond market integration," Journal of Banking & Finance, Elsevier, vol. 35(4), pages 1011-1025, April.
    12. Kraemer-Eis, Helmut & Lang, Frank & Torfs, Wouter & Gvetadze, Salome, 2017. "European Small Business Finance Outlook: June 2017," EIF Working Paper Series 2017/43, European Investment Fund (EIF).
    13. Iregui, Ana María & Otero, Jesús, 2013. "Testing the law of one price in retail banking: An analysis for Colombia using a pair-wise approach," Economics Letters, Elsevier, vol. 118(1), pages 29-32.
    14. Jean-Paul POLLIN, 2010. "l eurosystème et l'intégration financière européenne," LEO Working Papers / DR LEO 832, Orleans Economics Laboratory / Laboratoire d'Economie d'Orleans (LEO), University of Orleans.
    15. Anna Burova & Alexey Ponomarenko & Svetlana Popova & Andrey Sinyakov & Yulia Ushakova, 2021. "Measuring heterogeneity in banks' interest rate setting in Russia," Bank of Russia Working Paper Series wps77, Bank of Russia.
    16. Cândida Ferreira, 2011. "European integration and banking efficiency: a panel cost frontier approach," Working Papers Department of Economics 2011/04, ISEG - Lisbon School of Economics and Management, Department of Economics, Universidade de Lisboa.
    17. Wagenvoort, Rien & Ebner, André & Morgese Borys, Magdalena, 2009. "EFR 2009-01 A factor analysis approach to measuring European loan and bond market integration," Economic and Financial Reports 2009/1, European Investment Bank, Economics Department.
    18. Kraemer-Eis, Helmut & Botsari, Antonia & Gvetadze, Salome & Lang, Frank & Torfs, Wouter, 2018. "European Small Business Finance Outlook: December 2018," EIF Working Paper Series 2018/53, European Investment Fund (EIF).

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    More about this item

    JEL classification:

    • E43 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Interest Rates: Determination, Term Structure, and Effects
    • E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages

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