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Leverage ratio requirement and credit allocation and bank stability

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  • Kiema, Ilkka
  • Jokivuolle, Esa

Abstract

We study the effects on credit allocation and bank stability of introducing a leverage ratio requirement (LRR) on top of risk-based capital requirements, as in Basel III. For the current 3% LRR, both low-risk and high-risk loan rates and volumes remain essentially unchanged, because banks previously specializing in low-risk lending can adapt by granting both low-risk and high-risk loans. For sufficiently high LRRs, low-risk lending rates would significantly increase and high-risk lending rates would fall. In the presence of severe model risk concerning low-risk loans, as happened in the subprime crisis, the current 3% LRR might even reduce bank stability, counter to regulatory intentions. This is because the allocational effect caused by the LRR, which makes bank loan portfolios more alike, may turn beneficial risk spreading into harmful risk contamination. For higher levels of LRR, however, bank stability is likely to be improved even in the presence of model risk. Keywords: bank regulation, Basel III, capital requirements, credit risk, leverage ratio JEL classification numbers: D41, D82, G14, G21, G28

Suggested Citation

  • Kiema, Ilkka & Jokivuolle, Esa, 2011. "Leverage ratio requirement and credit allocation and bank stability," Research Discussion Papers 10/2011, Bank of Finland.
  • Handle: RePEc:bof:bofrdp:2011_010
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    References listed on IDEAS

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    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.
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    7. Martin Hellwig, 2010. "Capital Regulation after the Crisis: Business as Usual?," ifo DICE Report, ifo Institute - Leibniz Institute for Economic Research at the University of Munich, vol. 8(02), pages 40-46, July.
    8. Martin Hellwig, 2010. "Capital Regulation after the Crisis: Business as Usual?," ifo DICE Report, ifo Institute - Leibniz Institute for Economic Research at the University of Munich, vol. 8(2), pages 40-46, 07.
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    Cited by:

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    2. Heinrich, Gregor, 2011. "Basilea III y la relevancia para la banca de desarrollo en América Latina [Basel III and the relevance for development banks in Latin America]," MPRA Paper 47401, University Library of Munich, Germany.
    3. Riccetti, Luca & Russo, Alberto & Mauro, Gallegati, 2013. "Financial Regulation in an Agent Based Macroeconomic Model," MPRA Paper 51013, University Library of Munich, Germany.

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    More about this item

    JEL classification:

    • D41 - Microeconomics - - Market Structure, Pricing, and Design - - - Perfect Competition
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • 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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