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Do weak supervisory systems encourage bank risk-taking?

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  • Buch, Claudia M.
  • DeLong, Gayle

Abstract

Weak bank supervision could give banks the ability to shift risk from themselves to supervisors. We use cross-border bank mergers as a natural experiment to test changes in risk and the impact of supervision. We examine cross-border bank mergers and find that the supervisory structures of the partners' countries influence changes in post-merger total risk. An acquirer from a country with strong supervision lowers total risk after a cross-border merger. However, total risk increases when the target bank is located in a country with relatively strong supervision. This result is consistent with strong host regulators limiting the risky activities of their local banks. Foreign-owned competitors could then engage in the risky projects, especially if the foreign banks' supervisors are not strong. An acquirer entering a country with strong supervision appears to shift risk back to its home country. The results suggest that bank supervisors can reduce total banking risk in their countries by being strong.

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Bibliographic Info

Article provided by Elsevier in its journal Journal of Financial Stability.

Volume (Year): 4 (2008)
Issue (Month): 1 (April)
Pages: 23-39

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Handle: RePEc:eee:finsta:v:4:y:2008:i:1:p:23-39

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Web page: http://www.elsevier.com/locate/jfstabil

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  1. Buch, Claudia M. & DeLong, Gayle, 2004. "Cross-border bank mergers: What lures the rare animal?," Journal of Banking & Finance, Elsevier, vol. 28(9), pages 2077-2102, September.
  2. Cerutti, Eugenio & Dell'Ariccia, Giovanni & Martinez Peria, Maria Soledad, 2005. "How banks go abroad : branches or subsidiaries ?," Policy Research Working Paper Series 3753, The World Bank.
  3. Amihud, Yakov & DeLong, Gayle L. & Saunders, Anthony, 2002. "The effects of cross-border bank mergers on bank risk and value," Journal of International Money and Finance, Elsevier, vol. 21(6), pages 857-877, November.
  4. 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.
  5. Repullo, Rafael, 2000. "A Model of Takeovers of Foreign Banks," CEPR Discussion Papers 2639, C.E.P.R. Discussion Papers.
  6. John, Kose & Saunders, Anthony & Senbet, Lemma W, 2000. "A Theory of Bank Regulation and Management Compensation," Review of Financial Studies, Society for Financial Studies, vol. 13(1), pages 95-125.
  7. Hovakimian, Armen & Kane, Edward J. & Laeven, Luc, 2002. "How Country and Safety-Net Characteristics Affect Bank Risk-Shifting," CEI Working Paper Series 2002-10, Center for Economic Institutions, Institute of Economic Research, Hitotsubashi University.
  8. Barth, James R. & Caprio Jr, Gerard & Levine, Ross, 2001. "The regulation and supervision of banks around the world - a new database," Policy Research Working Paper Series 2588, The World Bank.
  9. Esty, Benjamin C. & Megginson, William L., 2003. "Creditor Rights, Enforcement, and Debt Ownership Structure: Evidence from the Global Syndicated Loan Market," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 38(01), pages 37-60, March.
  10. 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.).
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