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Eine effektive Alternative zur Leverage Ratio

Author

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  • Kellermann, Kersten
  • Schlag, Carsten-Henning

Abstract

Nach den Erfahrungen der Finanzkrise scheint es angebracht, in der Bankenaufsicht ein Instrument zu implementieren, das das Finanzmarktaufsichtssystem gegen potentielle Fehlleistungen bei der Anwendung risikogewichteter Eigenmittelvorschriften absichert. Die Vertreter der G-20 Länder haben deshalb im September 2009 die Einführung einer Leverage Ratio gefordert. Für die Schweizer Grossbanken hat die Eidgenössische Finanzmarktaufsicht bereits im November 2008 eine solche implementiert. Die Leverage Ratio soll eine gewisse Kernkapitalausstattung der Banken garantieren, und zwar unabhängig von den Ergebnissen, die die Verfahren zur Risikomessung liefern. Anhand von Bilanzdaten der Schweizer Grossbank UBS stellt der Beitrag das Zusammenspiel von risikogewichteten Eigenmittelvorschriften und der Leverage Ratio dar. Es besteht die Gefahr, dass die Leverage Ratio die Risikogewichtung aushebelt. Den Banken kann hierdurch ein Anreiz entstehen, erhöhte Risiken einzugehen. Im Beitrag wird deshalb als alternatives Aufsichtsinstrument ein Sockelrisikogewicht vorgeschlagen. Dieses Sockelrisikogewicht könnte die Funktion eines Backstop übernehmen, in dem es das Kleinrechnen der risikogewichteten Aktiven durch die Banken begrenzt, gleichzeitig die Risikogewichtung jedoch zur Wirkung kommen lässt.

Suggested Citation

  • Kellermann, Kersten & Schlag, Carsten-Henning, 2010. "Eine effektive Alternative zur Leverage Ratio," KOFL Working Papers 8, Konjunkturforschungsstelle Liechtenstein (KOFL), Vaduz.
  • Handle: RePEc:zbw:koflwp:8
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    References listed on IDEAS

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    1. Kersten Kellermann & Carsten-Henning Schlag, 2010. "Eine effektive Alternative zur Leverage Ratio," ifo Schnelldienst, ifo Institute - Leibniz Institute for Economic Research at the University of Munich, vol. 63(16), pages 26-34, August.
    2. Blum, Jürg M., 2008. "Why 'Basel II' may need a leverage ratio restriction," Journal of Banking & Finance, Elsevier, vol. 32(8), pages 1699-1707, August.
    3. Tobias Adrian & Hyun Song Shin, 2008. "Liquidity, monetary policy, and financial cycles," Current Issues in Economics and Finance, Federal Reserve Bank of New York, vol. 14(Jan).
    4. Kellermann, Kersten, 2010. "Too Big To Fail: Ein gordischer Knoten für die Finanzmarktaufsicht?," KOFL Working Papers 6, Konjunkturforschungsstelle Liechtenstein (KOFL), Vaduz.
    5. Tobias Adrian & Hyun Song Shin, 2008. "Liquidity and financial cycles," BIS Working Papers 256, Bank for International Settlements.
    6. Kersten Kellermann & Carsten-Henning Schlag, 2010. "Die Reform des Schweizer Eigenmittelregimes für Großbanken," Wirtschaftsdienst, Springer;ZBW - Leibniz Information Centre for Economics, vol. 90(8), pages 531-539, August.
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    Cited by:

    1. Brunhart, Andreas, 2012. "Identification of Liechtenstein's Historic Economic Growth and Business Cycles by Econometric Extensions of Data Series," MPRA Paper 44628, University Library of Munich, Germany.
    2. Kellermann, Kersten & Schlag, Carsten-Henning, 2010. "Das Schweizer Eigenmittelregime für Grossbanken: Work in Progress," KOFL Working Papers 7, Konjunkturforschungsstelle Liechtenstein (KOFL), Vaduz.

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    More about this item

    Keywords

    Risikogewichtete Eigenmittelvorschriften; Basler Akkord; Finanzmarktaufsicht; Finanzmarktregulierung; Leverage Ratio; Sockelrisikogewicht; Basel III; Grossbanken; Schweiz;
    All these keywords.

    JEL classification:

    • G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G01 - Financial Economics - - General - - - Financial Crises
    • H32 - Public Economics - - Fiscal Policies and Behavior of Economic Agents - - - Firm

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