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Risk, Concentration and Market Power in the Banking Industry: Evidence from the Colombian System (1997-2006)

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  • Jorge Tovar
  • Christian Jaramillo
  • Carlos Hernández

Abstract

This paper examines the relationship between risk, concentration and the exercise of market power by banking institutions. We use monthly balance-sheet and interest rate data for the Colombian banking system from 1997 to 2006. The evidence shows that, in the face of high risk, banks transfer a larger share of risk to customers through higher intermediation margins. The result suggests that systemic risk acts as a collusion" device for banks: while high concentration is not enough to have collusion, the true effects of high market concentration on interest rates´ mark-ups emerge when the system is under stress."

Suggested Citation

  • Jorge Tovar & Christian Jaramillo & Carlos Hernández, 2007. "Risk, Concentration and Market Power in the Banking Industry: Evidence from the Colombian System (1997-2006)," Documentos CEDE 4385, Universidad de los Andes, Facultad de Economía, CEDE.
    • Handle: RePEc:col:000089:004385
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    File URL: https://repositorio.uniandes.edu.co/bitstream/handle/1992/8181/dcede2007-27.pdf
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    References listed on IDEAS

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    1. Brock, Philip L. & Rojas Suarez, Liliana, 2000. "Understanding the behavior of bank spreads in Latin America," Journal of Development Economics, Elsevier, vol. 63(1), pages 113-134, October.
    2. Alli Nathan & Edwin H. Neave, 1989. "Competition and Contestability in Canada's Financial System: Empirical Results," Canadian Journal of Economics, Canadian Economics Association, vol. 22(3), pages 576-594, August.
    3. Dairo Estrada, 2005. "Efectos de las fusiones sobre el mercado financiero colombiano," Borradores de Economia 329, Banco de la Republica de Colombia.
    4. Gianni De Nicolo, 2000. "Size, charter value and risk in banking: an international perspective," International Finance Discussion Papers 689, Board of Governors of the Federal Reserve System (U.S.).
    5. Prager, Robin A & Hannan, Timothy H, 1998. "Do Substantial Horizontal Mergers Generate Significant Price Effects? Evidence from the Banking Industry," Journal of Industrial Economics, Wiley Blackwell, vol. 46(4), pages 433-452, December.
    6. Panzar, John C & Rosse, James N, 1987. "Testing for "Monopoly" Equilibrium," Journal of Industrial Economics, Wiley Blackwell, vol. 35(4), pages 443-456, June.
    7. Robin A. Prager & Timothy H. Hannan, 1998. "Do Substantial Horizontal Mergers Generate Significant Price Effects? Evidence From The Banking Industry," Journal of Industrial Economics, Wiley Blackwell, vol. 46(4), pages 433-452, December.
    8. Bikker, Jacob A. & Haaf, Katharina, 2002. "Competition, concentration and their relationship: An empirical analysis of the banking industry," Journal of Banking & Finance, Elsevier, vol. 26(11), pages 2191-2214, November.
    9. Alejandro BADEL FLOREZ, 2002. "Sistema Bancario Colombiano: ¿Somos eficientes a nivel internacional?," Archivos de Economía 3500, Departamento Nacional de Planeación.
    10. Xavier Freixas & Jean-Charles Rochet, 1997. "Microeconomics of Banking," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262061937, December.
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    Cited by:

    1. Al-Jarhi, Mabid, 2014. "Towards an Economic Theory of Islamic Finance Regulation," MPRA Paper 66744, University Library of Munich, Germany, revised 2014.
    2. Al-Jarhi, Mabid Ali M. M., 2016. "An Economic Theory of Islamic Finance Regulation," Islamic Economic Studies, The Islamic Research and Training Institute (IRTI), vol. 24, pages 1-44.
    3. Simpasa, Anthony, 2010. "Characterising market power and its determinants in the Zambian banking indudstry," MPRA Paper 27232, University Library of Munich, Germany.

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    More about this item

    Keywords

    Banking; market power; risk; concentration; intermediation margins;
    All these keywords.

    JEL classification:

    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G34 - Financial Economics - - Corporate Finance and Governance - - - Mergers; Acquisitions; Restructuring; Corporate Governance
    • G38 - Financial Economics - - Corporate Finance and Governance - - - Government Policy and Regulation
    • L11 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Production, Pricing, and Market Structure; Size Distribution of Firms

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