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Ökonomische Analyse europäischer Bankenregulierung: Verbriefung und Interbankenmarkt im Fokus

Author

Listed:
  • Bobek, Andreas
  • Bohm, Thomas
  • Neuner, Stefan
  • Paintner, Sandra
  • Schmeußer, Stefanie
  • Waldvogel, Felix

Abstract

Die Bankenneuregulierung der Europäische Kommission sieht eine Beschränkung der Kreditvergabe im Interbankenmarkt auf 25 % des Eigenkapitals sowie einen Selbsteinbehalt des Originators in Höhe von 5 % am gesamten zu verbriefenden Forderungsportfolio vor. Eine starre Regulierung führt aber nicht zwingend zu einer dauerhaften Krisenprävention, wie die vorliegende Arbeit modelltheoretisch belegt. Eine starre Kreditvergabebeschränkung erreicht zwar eine Mindestdiversifikation und Eigenkapitalaufstockung im Bankensektor, wodurch das systemische Risiko gesenkt wird. Allerdings geht dies mit steigenden Transaktionskosten einher. Anhand eines Modells von Fender und Mitchell werden die Auswirkungen auf die Screening-Anstrengungen bei Verbriefungen mit komplettem Portfolioselbsteinbehalt, Einbehalt der Equity Tranche und Einbehalt eines vertikalen Anteils durch den Originator untersucht. Aus dem Modell wird ersichtlich, dass ein vertikaler Einbehalt kleiner 100 % des Forderungspools, wie er von der Europäischen Kommission vorgesehen ist, in keiner Situation zu einem optimalen Screening-Einsatz führt, sondern sogar teilweise eine Verschlechterung im Vergleich zum Einbehalt der Equity Tranche darstellt. Eine pauschale Regulierung ist deshalb abzulehnen und eine qualitative, dynamische Regulierung, die mehr Transparenz schafft, zu befürworten.

Suggested Citation

  • Bobek, Andreas & Bohm, Thomas & Neuner, Stefan & Paintner, Sandra & Schmeußer, Stefanie & Waldvogel, Felix, 2011. "Ökonomische Analyse europäischer Bankenregulierung: Verbriefung und Interbankenmarkt im Fokus," Bayreuth Working Papers on Finance, Accounting and Taxation (FAcT-Papers) 2011-01, University of Bayreuth, Chair of Finance and Banking.
  • Handle: RePEc:zbw:bayfat:201101
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    References listed on IDEAS

    as
    1. Fender, Ingo & Mitchell, Janet, 2009. "Incentives and Tranche Retention in Securitisation: A Screening Model," CEPR Discussion Papers 7483, C.E.P.R. Discussion Papers.
    2. Jan Pieter Krahnen, 2005. "Der Handel von Kreditrisiken: Eine neue Dimension des Kapitalmarktes," Perspektiven der Wirtschaftspolitik, Verein für Socialpolitik, vol. 6(4), pages 499-519, November.
    3. Jobst, Andreas A., 2005. "The Basle scuritisation framework explained: The regulatory treatment of asset securitisation," CFS Working Paper Series 2004/21, Center for Financial Studies (CFS).
    4. Franke, Günter & Krahnen, Jan Pieter, 2008. "The future of securitization," CFS Working Paper Series 2008/31, Center for Financial Studies (CFS).
    5. Ashcraft, Adam B. & Schuermann, Til, 2008. "Understanding the Securitization of Subprime Mortgage Credit," Foundations and Trends(R) in Finance, now publishers, vol. 2(3), pages 191-309, June.
    Full references (including those not matched with items on IDEAS)

    More about this item

    Keywords

    Bankenregulierung; Verbriefung; Selbstbehalt; Interbankenmarkt;

    JEL classification:

    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • G01 - Financial Economics - - General - - - Financial Crises
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation

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