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The Regulator's Trade-off: Bank Supervision vs. Minimum Capital

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  • Florian Buck

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  • Eva Schliephake

Abstract

We develop a simple model of banking regulation with two policy instruments: minimum capital requirements and supervision of domestic banks. The regulator faces a trade-off: high capital requirements cause a drop in the banks’ profitability, while strict supervision reduces the scope of intermediation and is costly for taxpayers. We show that the expected costs of a banking crisis are minimised with a mix of both instruments. Once we allow for cross-border banking, the optimal policy is not feasible. If domestic supervisory effort is not observable, our model predicts a race to the bottom in banking regulation. Therefore, countries are better off by harmonising regulation on an international standard.

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File URL: http://www.cesifo-group.de/portal/page/portal/DocBase_Content/WP/WP-CESifo_Working_Papers/wp-cesifo-2012/wp-cesifo-2012-08/cesifo1_wp3923.pdf
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Bibliographic Info

Paper provided by CESifo Group Munich in its series CESifo Working Paper Series with number 3923.

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Date of creation: 2012
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Handle: RePEc:ces:ceswps:_3923

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Keywords: bank regulation; regulatory competition; supervision and capital requirements;

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  15. Buch, Claudia M. & DeLong, Gayle, 2008. "Do weak supervisory systems encourage bank risk-taking?," Journal of Financial Stability, Elsevier, vol. 4(1), pages 23-39, April.
  16. Gyongyi Loranth & Alan Morrison, 2003. "Multinational Bank Capital Regulation with Deposit Insurance and Diversification Effects," OFRC Working Papers Series 2003fe11, Oxford Financial Research Centre.
  17. Schüler, Martin & Heinemann, Friedrich, 2005. "The Costs of Supervisory Fragmentation in Europe," ZEW Discussion Papers 05-01, ZEW - Zentrum für Europäische Wirtschaftsforschung / Center for European Economic Research.
  18. Donato Masciandaro & Maria J. Nieto & Henriette Prast, 2007. "Who pays for banking supervision? Principles and trends," Journal of Financial Regulation and Compliance, Emerald Group Publishing, vol. 15(3), pages 303-326, July.
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