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Credit ratings and the standardised approach to credit risk in Basel II

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  • Van Roy, Patrick

Abstract

This paper simulates the minimum capital requirements for the wholesale exposures of a medium-sized bank in each EMU country depending on the credit rating agencies chosen by the bank to risk-weight its exposures in the standardised approach to credit risk in Basel II. Three main results emerge from the analysis. First, although the use of different combinations of credit rating agencies leads to significant differences in minimum capital requirements, these differences never exceed 10% of EMU banks' regulatory capital for wholesale exposures on average. Second, the standardised approach provides a small regulatory capital incentive for banks to use several credit rating agencies to risk-weight their exposures. Third, the minimum capital requirements for the wholesale exposures of EMU banks will be higher in Basel II than in Basel I. I also show that the incentive for banks to engage in regulatory arbitrage in the standardised approach to credit risk is limited. JEL Classification: G21, G28

Suggested Citation

  • Van Roy, Patrick, 2005. "Credit ratings and the standardised approach to credit risk in Basel II," Working Paper Series 517, European Central Bank.
  • Handle: RePEc:ecb:ecbwps:2005517
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    References listed on IDEAS

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    Cited by:

    1. Sami Ben Naceur & Magda Kandil, 2013. "Has The Basel Capital Requirement Caused Credit Crunch In The Mena Region?," Middle East Development Journal (MEDJ), World Scientific Publishing Co. Pte. Ltd., vol. 5(02), pages 1-33.
    2. Drago, Danilo & Gallo, Raffaele, 2018. "Do multiple credit ratings affect syndicated loan spreads?," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 56(C), pages 1-16.
    3. Hauck, Achim & Neyer, Ulrike, 2014. "Disagreement between rating agencies and bond opacity: A theoretical perspective," Economics Letters, Elsevier, vol. 123(1), pages 82-85.
    4. Iftekhar Hasan & Suk-Joong Kim & Eliza Wu, 2018. "The Effects of Ratings-Contingent Regulation on International Bank Lending Behavior: Evidence from the Basel 2 Accord," World Scientific Book Chapters, in: Information Spillovers and Market Integration in International Finance Empirical Analyses, chapter 16, pages 547-603, World Scientific Publishing Co. Pte. Ltd..
    5. Tewari, Manish & Byrd, Anthony & Ramanlal, Pradipkumar, 2015. "Callable bonds, reinvestment risk, and credit rating improvements: Role of the call premium," Journal of Financial Economics, Elsevier, vol. 115(2), pages 349-360.

    More about this item

    Keywords

    capital requirements; credit rating agencies; New Basel Capital Accord;

    JEL classification:

    • 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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