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A Test of the Law of One Price in Retail Banking

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  • ALFREDO MARTÍN‐OLIVER
  • VICENTE SALAS‐FUMÁS
  • JESÚS SAURINA

Abstract

This paper investigates the level and the determinants of retail banking interest rate differences among Spanish banks in the period 1989–2003. We find that the interest rates of twenty five different bank loan and deposit products adjust rather rapidly to their long‐term values in response to external shocks, as the relative version of the Law of One Price predicts, but the evidence runs contrary to the absolute version of the Law. Credit risk premium, part of the marginal cost of the loans granted by a particular bank, is an important source of interest rate dispersion across banks and loan products, both before and after Spain joined the Euro zone. Therefore, differences in credit risk policies across banks must be taken into account when forming expectations about European retail banking integration.

Suggested Citation

  • Alfredo Martín‐Oliver & Vicente Salas‐Fumás & Jesús Saurina, 2007. "A Test of the Law of One Price in Retail Banking," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 39(8), pages 2021-2040, December.
    • Handle: RePEc:wly:jmoncb:v:39:y:2007:i:8:p:2021-2040
    DOI: 10.1111/j.1538-4616.2007.00096.x
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    Cited by:

    1. Mencía, Javier, 2012. "Assessing the risk-return trade-off in loan portfolios," Journal of Banking & Finance, Elsevier, vol. 36(6), pages 1665-1677.
    2. Jiménez, Gabriel & Mencía, Javier, 2009. "Modelling the distribution of credit losses with observable and latent factors," Journal of Empirical Finance, Elsevier, vol. 16(2), pages 235-253, March.
    3. Francisco de Castro & Pablo Hernández de Cos, 2006. "The economic effects of exogenous fiscal shocks in Spain: a SVAR approach," Working Papers 0604, Banco de España.
    4. Juan Ayuso & Jorge Martínez, 2006. "Assessing banking competition: an application to the Spanish market for (quality-changing) deposits," Working Papers 0623, Banco de España.
    5. Martín-Oliver, Alfredo & Salas-Fumás, Vicente, 2008. "The output and profit contribution of information technology and advertising investments in banks," Journal of Financial Intermediation, Elsevier, vol. 17(2), pages 229-255, April.
    6. Gabriel Jimenez & Jose A. Lopez & Jesus Saurina, 2007. "How does competition impact bank risk-taking?," Working Paper Series 2007-23, Federal Reserve Bank of San Francisco.
    7. Alfredo Martin-Oliver & Vicente Salas-Fumas & Jesús Saurina, 2008. "Search Cost and Price Dispersion in Vertically Related Markets: The Case of Bank Loans and Deposits," Review of Industrial Organization, Springer;The Industrial Organization Society, vol. 33(4), pages 297-323, December.
    8. Luis J. Álvarez & Emmanuel Dhyne & Marco Hoeberichts & Claudia Kwapil & Hervé Le Bihan & Patrick Lünnemann & Fernando Martins & Roberto Sabbatini & Harald Stahl & Philip Vermeulen & Jouko Vilmunen, 2006. "Sticky Prices in the Euro Area: A Summary of New Micro-Evidence," Journal of the European Economic Association, MIT Press, vol. 4(2-3), pages 575-584, 04-05.
    9. Carlos Pérez Montes, 2013. "The impact of interbank and public debt markets on the competition for bank deposits," Working Papers 1319, Banco de España.
    10. Jiménez, Gabriel & Lopez, Jose A. & Saurina, Jesús, 2013. "How does competition affect bank risk-taking?," Journal of Financial Stability, Elsevier, vol. 9(2), pages 185-195.
    11. Rughoo, Aarti & Sarantis, Nicholas, 2014. "The global financial crisis and integration in European retail banking," Journal of Banking & Finance, Elsevier, vol. 40(C), pages 28-41.
    12. Anna Burova & Alexey Ponomarenko & Svetlana Popova & Andrey Sinyakov & Yulia Ushakova, 2022. "Measuring Heterogeneity in Banks’ Interest Rate Setting in Russia," Emerging Markets Finance and Trade, Taylor & Francis Journals, vol. 58(14), pages 4103-4119, November.
    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. Maudos, Joaquin & de Guevara, Juan Fernandez, 2007. "The cost of market power in banking: Social welfare loss vs. cost inefficiency," Journal of Banking & Finance, Elsevier, vol. 31(7), pages 2103-2125, July.
    15. Luis Gutiérrez de Rozas, 2007. "Testing for competition in the Spanish banking industry: The Panzar-Rosse approach revisited," Working Papers 0726, Banco de España.
    16. Holmes, Mark J. & Iregui, Ana María & Otero, Jesús, 2019. "Interest rate convergence across maturities: Evidence from bank data in an emerging market economy," The North American Journal of Economics and Finance, Elsevier, vol. 49(C), pages 57-70.
    17. Rughoo, Aarti & Sarantis, Nicholas, 2012. "Integration in European retail banking: Evidence from savings and lending rates to non-financial corporations," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 22(5), pages 1307-1327.
    18. Casu, Barbara & Girardone, Claudia, 2010. "Integration and efficiency convergence in EU banking markets," Omega, Elsevier, vol. 38(5), pages 260-267, October.
    19. Kok, Christoffer & Lichtenberger, Jung-Duk, 2007. "Mortgage interest rate dispersion in the euro area," Working Paper Series 733, European Central Bank.

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    JEL classification:

    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages

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