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Determinants of Interest Margins in Colombia

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Author Info
Dairo Estrada ()
Esteban Gómez ()
Inés Orozco ()

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Abstract

This paper analyzes the determinants of interest margins in the Colombian Financial System. Based on the model by Ho and Saun- ders (1981), interest margins are modelled as a function of the pure spread and bank-speci¯c institutional imperfections using quarterly data for the period 1994:IV-2005:III. Additionally, the pure spread is estimated as a function of market power and interest rate volatility. Results indicate that interest margins are mainly a®ected by credit institutions' ine±ciency and to a lesser extent by credit risk exposure and market power. This implies that public policies should be ori- ented towards creating the necessary market conditions for banks to enhance their e±ciency.

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Paper provided by Banco de la Republica de Colombia in its series Borradores de Economia with number 393.

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Handle: RePEc:bdr:borrec:393

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Related research
Keywords: Interest Margins; Competition; Credit Risk; Interest Rate Risk.;

Other versions of this item:

Find related papers by JEL classification:
L11 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Production, Pricing, and Market Structure; Size Distribution of Firms
L41 - Industrial Organization - - Antitrust Issues and Policies - - - Monopolization; Horizontal Anticompetitive Practices
L89 - Industrial Organization - - Industry Studies: Services - - - Other
G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Mortgages
G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation

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  1. Ho, Thomas S Y & Saunders, Anthony, 1985. " A Micro Model of the Federal Funds Market," Journal of Finance, American Finance Association, vol. 40(3), pages 977-88, July. [Downloadable!] (restricted)
  2. Kit, Pong Wong, 1997. "On the determinants of bank interest margins under credit and interest rate risks," Journal of Banking & Finance, Elsevier, vol. 21(2), pages 251-271, February. [Downloadable!] (restricted)
  3. Ho, Thomas S. Y. & Saunders, Anthony, 1981. "The Determinants of Bank Interest Margins: Theory and Empirical Evidence," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 16(04), pages 581-600, November. [Downloadable!]
  4. Dairo Estrada, 2005. "Efectos De Las Fusiones Sobre El Mercado Financiero Colombiano," BORRADORES DE ECONOMIA 002424, BANCO DE LA REPÚBLICA. [Downloadable!]
  5. Allen, Linda, 1988. "The Determinants of Bank Interest Margins: A Note," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 23(02), pages 231-235, June. [Downloadable!]
  6. Dairo Estrada, . "Efectos de las fusiones sobre el mercado financiero colombiano," Borradores de Economia 329, Banco de la Republica de Colombia. [Downloadable!]
  7. Saunders, Anthony & Schumacher, Liliana, 2000. "The determinants of bank interest rate margins: an international study," Journal of International Money and Finance, Elsevier, vol. 19(6), pages 813-832, December. [Downloadable!] (restricted)
  8. Zarruk, Emilio R. & Madura, Jeff, 1992. "Optimal Bank Interest Margin under Capital Regulation and Deposit Insurance," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 27(01), pages 143-149, March. [Downloadable!]
  9. Hausman, Jerry A. & Taylor, William E., 1981. "Panel data and unobservable individual effects," Journal of Econometrics, Elsevier, vol. 16(1), pages 155-155, May. [Downloadable!] (restricted)
  10. Demirguc, Asli & Huizinga, Harry, 1999. "Determinants of Commercial Bank Interest Margins and Profitability: Some International Evidence," World Bank Economic Review, Oxford University Press, vol. 13(2), pages 379-408, May.
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  11. Timothy Hannan & Robin Prager, 1998. "The Relaxation of Entry Barriers in the Banking Industry: An Empirical Investigation," Journal of Financial Services Research, Springer, vol. 14(3), pages 171-188, December. [Downloadable!] (restricted)
  12. 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. [Downloadable!] (restricted)
  13. Breusch, T S & Pagan, A R, 1980. "The Lagrange Multiplier Test and Its Applications to Model Specification in Econometrics," Review of Economic Studies, Blackwell Publishing, vol. 47(1), pages 239-53, January. [Downloadable!] (restricted)
  14. Flannery, Mark J., 1989. "Capital regulation and insured banks choice of individual loan default risks," Journal of Monetary Economics, Elsevier, vol. 24(2), pages 235-258, September. [Downloadable!] (restricted)
  15. Hausman, Jerry A & Taylor, William E, 1981. "Panel Data and Unobservable Individual Effects," Econometrica, Econometric Society, vol. 49(6), pages 1377-98, November. [Downloadable!] (restricted)
  16. Lerner, Eugene M., 1981. "Discussion: The Determinants of Bank Interest Margins: Theory and Empirical Evidence," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 16(04), pages 601-602, November. [Downloadable!]
  17. Zarruk, Emilio R., 1989. "Bank spread with uncertain deposit level and risk aversion," Journal of Banking & Finance, Elsevier, vol. 13(6), pages 797-810, December. [Downloadable!] (restricted)
  18. Flannery, Mark J & James, Christopher M, 1984. " The Effect of Interest Rate Changes on the Common Stock Returns of Financial Institutions," Journal of Finance, American Finance Association, vol. 39(4), pages 1141-53, September. [Downloadable!] (restricted)
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