IDEAS home Printed from https://ideas.repec.org/p/ies/wpaper/f202206.html
   My bibliography  Save this paper

International banking regulation and Tier 1 capital ratios. On the robustness of the critical average risk weight framework

Author

Listed:
  • Renaud Beaupain

    (IESEG School of Management, Univ. Lille, CNRS, UMR 9221 - LEM - Lille Economie Management, F-59000 Lille, France)

  • Yann Braouezec

    (IESEG School of Management, Univ. Lille, CNRS, UMR 9221 - LEM - Lille Economie Management, F-59000 Lille, France)

Abstract

Under Basel III, the new international banking regulation, banks must maintain two Tier 1 capital ratios that treat risky assets dierently. The Basel Committee uses the critical average risk weight (CARW) framework, developed by the Bank of England to determine which ratio is the binding constraint. This methodology, which implicitly assumes that each asset is subject to a uniform shock, consists in comparing the implied average risk weight of a bank to a regulatory critical threshold. Using a stress test approach, we examine whether, and under which conditions, the CARW framework identies the correct binding capital ratio. We nd important errors, that are attributable to incorrect data but surprisingly not to the CARW framework. We nally generalize the methodology used by the Basel Committee and show how our stress-test approach can be used to determine which ratio is binding when only a (single class of) asset(s) is shocked.

Suggested Citation

  • Renaud Beaupain & Yann Braouezec, 2022. "International banking regulation and Tier 1 capital ratios. On the robustness of the critical average risk weight framework," Working Papers 2022-ACF-06, IESEG School of Management.
    • Handle: RePEc:ies:wpaper:f202206
    as

    Download full text from publisher

    File URL: https://www.ieseg.fr/wp-content/uploads/2023/01/2022-ACF-06.pdf
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. 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.
    2. Richard J. Herring, 2018. "The Evolving Complexity of Capital Regulation," Journal of Financial Services Research, Springer;Western Finance Association, vol. 53(2), pages 183-205, June.
    3. Robin Greenwood & Samuel G. Hanson & Jeremy C. Stein & Adi Sunderam, 2017. "Strengthening and Streamlining Bank Capital Regulation," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 48(2 (Fall)), pages 479-565.
    4. Mariathasan, Mike & Merrouche, Ouarda, 2014. "The manipulation of basel risk-weights," Journal of Financial Intermediation, Elsevier, vol. 23(3), pages 300-321.
    5. Francesco Vallascas & Jens Hagendorff, 2013. "The Risk Sensitivity of Capital Requirements: Evidence from an International Sample of Large Banks," Review of Finance, European Finance Association, vol. 17(6), pages 1947-1988.
    6. Charles W. Calomiris & Richard J. Herring, 2013. "How to Design a Contingent Convertible Debt Requirement That Helps Solve Our Too-Big-to-Fail Problem," Journal of Applied Corporate Finance, Morgan Stanley, vol. 25(2), pages 39-62, June.
    7. Morris Goldstein, 2017. "Banking's Final Exam: Stress Testing and Bank-Capital Reform," Peterson Institute Press: All Books, Peterson Institute for International Economics, number 7052, April.
    8. Herring, Richard J., 2018. "The Evolving Complexity of Capital Regulation," Working Papers 18-01, University of Pennsylvania, Wharton School, Weiss Center.
    9. Jones, David, 2000. "Emerging problems with the Basel Capital Accord: Regulatory capital arbitrage and related issues," Journal of Banking & Finance, Elsevier, vol. 24(1-2), pages 35-58, January.
    10. Ho-Mou Wu & Yue Zhao, 2016. "Optimal Leverage Ratio and Capital Requirements with Limited Regulatory Power," Review of Finance, European Finance Association, vol. 20(6), pages 2125-2150.
    11. Ingo Fender & Ulf Lewrick, 2015. "Calibrating the leverage ratio," BIS Quarterly Review, Bank for International Settlements, December.
    12. Jarrow, Robert, 2013. "A leverage ratio rule for capital adequacy," Journal of Banking & Finance, Elsevier, vol. 37(3), pages 973-976.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Beaupain, Renaud & Braouezec, Yann, 2024. "International banking regulation and Tier 1 capital ratios. On the robustness of the critical average risk weight framework," International Review of Financial Analysis, Elsevier, vol. 91(C).
    2. repec:ies:wpaper:f202211 is not listed on IDEAS
    3. Douglas da Rosa München & Herbert Kimura, 2020. "Regulatory Banking Leverage: what do you know?," Working Papers Series 540, Central Bank of Brazil, Research Department.
    4. Markus Behn & Rainer Haselmann & Vikrant Vig, 2022. "The Limits of Model‐Based Regulation," Journal of Finance, American Finance Association, vol. 77(3), pages 1635-1684, June.
    5. Böhnke, Victoria & Ongena, Steven & Paraschiv, Florentina & Reite, Endre J., 2023. "Back to the roots of internal credit risk models: Does risk explain why banks' risk-weighted asset levels converge over time?," Journal of Banking & Finance, Elsevier, vol. 156(C).
    6. Beltratti, Andrea & Paladino, Giovanna, 2016. "Basel II and regulatory arbitrage. Evidence from financial crises," Journal of Empirical Finance, Elsevier, vol. 39(PB), pages 180-196.
    7. Berardi, Simone & Marcelletti, Alessandra, 2017. "Optimal Bank Capital Requirements: An Asymmetric Information Perspective," LEAP Working Papers 2017/2, Luiss Institute for European Analysis and Policy.
    8. Thomas L. Hogan, 2021. "A Review of the Regulatory Impact Analysis of Risk-Based Capital and Related Liquidity Rules," JRFM, MDPI, vol. 14(1), pages 1-29, January.
    9. Barth, James R. & Miller, Stephen Matteo, 2018. "Benefits and costs of a higher bank “leverage ratio”," Journal of Financial Stability, Elsevier, vol. 38(C), pages 37-52.
    10. Mohamed Albaity & Mohammadmahdi Toobaee, 2017. "The Risk-sensitivity of Bank Capital Requirements: The Moderating Effects of Capital Regulation and Supervisory Power," International Journal of Economics and Financial Issues, Econjournals, vol. 7(2), pages 94-102.
    11. Marco Migueis, 2019. "Evaluating the AMA and the new standardized approach for operational risk capital," Journal of Banking Regulation, Palgrave Macmillan, vol. 20(4), pages 302-311, December.
    12. Annalisa Bucalossi & Antonio Scalia, 2016. "Leverage ratio, central bank operations and repo market," Questioni di Economia e Finanza (Occasional Papers) 347, Bank of Italy, Economic Research and International Relations Area.
    13. Jean-Edouard Colliard, 2019. "Strategic Selection of Risk Models and Bank Capital Regulation," Management Science, INFORMS, vol. 67(6), pages 2591-2606, June.
    14. Gong, Yaxian & Wei, Xu, 2022. "Asset quality, financing structure, and bank regulations," International Review of Economics & Finance, Elsevier, vol. 80(C), pages 1061-1075.
    15. Joseph P. Hughes, 2018. "Comments on “The Evolving Complexity of Capital Regulation”," Journal of Financial Services Research, Springer;Western Finance Association, vol. 53(2), pages 207-210, June.
    16. Herring, Richard J., 2018. "The Evolving Complexity of Capital Regulation," Working Papers 18-01, University of Pennsylvania, Wharton School, Weiss Center.
    17. Han, Ruoning & Muyeed, Ahadul Kabir, 2024. "Deposit competition and effectiveness of bank capital requirements," The North American Journal of Economics and Finance, Elsevier, vol. 74(C).
    18. Huang, Qiubin & de Haan, Jakob & Scholtens, Bert, 2020. "Does bank capitalization matter for bank stock returns?," The North American Journal of Economics and Finance, Elsevier, vol. 52(C).
    19. Conlon, Thomas & Cotter, John & Molyneux, Philip, 2020. "Beyond common equity: The influence of secondary capital on bank insolvency risk," Journal of Financial Stability, Elsevier, vol. 47(C).
    20. James R. Barth & Stephen Matteo Miller, 2018. "On the Rising Complexity of Bank Regulatory Capital Requirements: From Global Guidelines to their United States (US) Implementation," JRFM, MDPI, vol. 11(4), pages 1-33, November.
    21. Ly, Kim Cuong & Shimizu, Katsutoshi, 2021. "Did Basel regulation cause a significant procyclicality?," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 73(C).

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:ies:wpaper:f202206. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Lies BOUTEN (email available below). General contact details of provider: https://edirc.repec.org/data/iesegfr.html .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.