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Banks' internal rating models - time for a change? The "system of floors" as proposed by the Basel committee

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  • Haselmann, Rainer
  • Wahrenburg, Mark

Abstract

We provide an assessment of the Basel Committee on Banking Supervision (BCBS) proposal to restrict the internal ratings-based approach on bank risk and to introduce risk-weighted asset floors. If well enforced, risk-sensitive capital regulation results in a more efficient credit allocation compared to the standard approach. Thus, the internal ratings-based approach should be maintained. Further, the use of internal ratings-based output floors potentially results in unintended negative side effects. Input floors are likely a valuable tool to achieve risk-weighted assets comparability. Finally, the proposed measures have a potential detrimental impact for European banks as compared to others.

Suggested Citation

  • Haselmann, Rainer & Wahrenburg, Mark, 2016. "Banks' internal rating models - time for a change? The "system of floors" as proposed by the Basel committee," SAFE White Paper Series 43, Leibniz Institute for Financial Research SAFE.
    • Handle: RePEc:zbw:safewh:43
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    References listed on IDEAS

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    Cited by:

    1. Mérő, Katalin, 2018. "A kockázatalapú bankszabályozás előretörése és visszaszorulása - az ösztönzési struktúrák szerepe [The emergence and decline of risk-based bank regulation the role of incentive structures]," Közgazdasági Szemle (Economic Review - monthly of the Hungarian Academy of Sciences), Közgazdasági Szemle Alapítvány (Economic Review Foundation), vol. 0(10), pages 981-1005.
    2. Haselmann, Rainer & Krahnen, Jan Pieter & Wahrenburg, Mark, 2019. "Evaluierung gesamt- und finanzwirtschaftlicher Effekte der Reformen europäischer Finanzmarktregulierung im deutschen Finanzsektor seit der Finanzkrise: Zusammenfassung der wichtigsten Ergebnisse," SAFE Policy Reports 2, Leibniz Institute for Financial Research SAFE.
    3. Katalin Mérő, 2021. "The ascent and descent of banks’ risk-based capital regulation," Journal of Banking Regulation, Palgrave Macmillan, vol. 22(4), pages 308-318, December.

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    Keywords

    internal rating models; floors; banking regulation; BCBS;
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