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How does competition impact bank risk-taking?

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  • Gabriel Jiménez
  • Jose A. Lopez
  • Jesús Saurina

Abstract

A common assumption in the academic literature and in the actual supervision of banking systems worldwide is that franchise value plays a key role in limiting bank risk-taking. As the underlying source of franchise value is assumed to be market power, reduced competition has been considered to promote banking stability. Boyd and De Nicolo (2005) propose an alternative view where concentration in the loan market could lead to increased borrower debt loads and a corresponding increase in loan defaults that undermine bank stability. Martinez-Miera and Repullo (2007) encompass both approaches by proposing a nonlinear relationship between competition and bank risk-taking. Using unique datasets for the Spanish banking system, we examine the empirical nature of that relationship. After controlling for macroeconomic conditions and bank characteristics, we find that standard measures of market concentration do not affect the ratio of non-performing commercial loans (NPL), our measure of bank risk. However, using Lerner indexes based on bank-specific interest rates, we find a negative relationship between loan market power and bank risk. This result provides evidence in favor of the franchise value paradigm.

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Bibliographic Info

Paper provided by Federal Reserve Bank of San Francisco in its series Working Paper Series with number 2007-23.

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Date of creation: 2007
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Handle: RePEc:fip:fedfwp:2007-23

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Keywords: Bank competition;

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  1. Franklin Allen & Douglas Gale, 2004. "Competition and financial stability," Proceedings, Federal Reserve Bank of Cleveland, pages 453-486.
  2. Matutes, Carmen & Vives, Xavier, 1995. "Imperfect Competition, Risk Taking, and Regulation in Banking," CEPR Discussion Papers 1177, C.E.P.R. Discussion Papers.
  3. Thorsten Beck & Asli Demirguc-Kunt & Ross Levine, 2003. "Bank Concentration and Crises," NBER Working Papers 9921, National Bureau of Economic Research, Inc.
  4. Alfredo Martín-Oliver & Vicente Salas-Fumás & Jesus 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.
  5. Eduardo Levy Yeyati & Alejandro Micco, 2003. "Concentration and Foreign Penetration in Latin American Banking Sectors: Impact on Competition and Risk," Business School Working Papers cinco, Universidad Torcuato Di Tella.
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  7. Rafael Repullo & David Martínez-Miera, 2008. "Does Competition Reduce The Risk Of Bank Failure?," Working Papers wp2008_0801, CEMFI.
  8. Stijn Claessens & Luc Laeven, 2004. "What drives bank competition? Some international evidence," Proceedings, Federal Reserve Bank of Cleveland, pages 563-592.
  9. John H. Boyd & Gianni De Nicolã, 2005. "The Theory of Bank Risk Taking and Competition Revisited," Journal of Finance, American Finance Association, vol. 60(3), pages 1329-1343, 06.
  10. Jimenez, Gabriel & Salas, Vicente & Saurina, Jesus, 2006. "Determinants of collateral," Journal of Financial Economics, Elsevier, vol. 81(2), pages 255-281, August.
  11. Carletti, Elena & Hartmann, Philipp, 2002. "Competition and stability: what's special about banking?," Working Paper Series 0146, European Central Bank.
  12. Robert Marquez, 2002. "Competition, Adverse Selection, and Information Dispersion in the Banking Industry," Review of Financial Studies, Society for Financial Studies, vol. 15(3), pages 901-926.
  13. David Besanko & Anjan V. Thakor, 2004. "Relationship Banking, Deposit Insurance and Bank Portfolio Choice," Finance 0411046, EconWPA.
  14. Marcello Bofondi & Giorgio Gobbi, 2004. "Bad Loans and Entry into Local Credit Markets," Temi di discussione (Economic working papers) 509, Bank of Italy, Economic Research and International Relations Area.
  15. Berger, Allen N, et al, 2004. "Bank Concentration and Competition: An Evolution in the Making," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 36(3), pages 433-51, June.
  16. Vicente Salas & Jesús Saurina, 2002. "Credit Risk in Two Institutional Regimes: Spanish Commercial and Savings Banks," Journal of Financial Services Research, Springer, vol. 22(3), pages 203-224, December.
  17. Oliver, Alfredo Martin & Fumas, Vicente Salas & Saurina, Jesus, 2006. "Risk premium and market power in credit markets," Economics Letters, Elsevier, vol. 93(3), pages 450-456, December.
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