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Rating systems, procyclicality and Basel II: an evaluation in a general equilibrium framework

Author

Listed:
  • Chiara Pederzoli

  • Costanza Torricelli

  • Dimitrios P. Tsomocos

Abstract

The introduction of Basel II has raised concerns about the potential impact of risk-sensitive capital requirements on the business cycle. Several approaches have been proposed to assess the procyclicality issue. In this paper, we adopt a general equilibrium model and conduct comprehensive analysis of different proposals. We set out a model that allows to evaluate different rating systems in relation to the procyclicality issue. Our model extends previous models by analysing the effects of different rating systems on banks’ portfolios (as in Catarineu-Rabell et al. 2005) and the contagion effects relevant to financial stability (as in Goodhart et al. 2005). The paper presents comparative statics results comparing a cycle-dependent and a neutral rating system from the point of view of banks profit maximization. Our results suggest that banks’ preferences about point in time or through the cycle rating systems depend on the banks’ characteristics and on the business cycle conditions in terms of expectations and realizations.

Suggested Citation

  • Chiara Pederzoli & Costanza Torricelli & Dimitrios P. Tsomocos, 2008. "Rating systems, procyclicality and Basel II: an evaluation in a general equilibrium framework," OFRC Working Papers Series 2008fe27, Oxford Financial Research Centre.
    • Handle: RePEc:sbs:wpsefe:2008fe27
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    Cited by:

    1. Alessandro Avellone & Ilaria Foroni & Chiara Pederzoli, 2025. "Minimum capital requirement portfolios according to the new Basel framework for market risk," Financial Markets and Portfolio Management, Springer;Swiss Society for Financial Market Research, vol. 39(2), pages 171-192, June.
    2. C. Goodhart & M. Peiris & D. Tsomocos & A. Vardoulakis, 2010. "On dividend restrictions and the collapse of the interbank market," Annals of Finance, Springer, vol. 6(4), pages 455-473, October.
    3. Lützenkirchen, Kristina & Rösch, Daniel & Scheule, Harald, 2013. "Ratings based capital adequacy for securitizations," Journal of Banking & Finance, Elsevier, vol. 37(12), pages 5236-5247.
    4. Olivier Bruno & Alexandra Girod, 2013. "Procyclicality and Bank Portfolio Risk Level Under A Constant Leverage Ratio," Working Papers halshs-01295573, HAL.
    5. Lützenkirchen, Kristina & Rösch, Daniel & Scheule, Harald, 2014. "Asset portfolio securitizations and cyclicality of regulatory capital," European Journal of Operational Research, Elsevier, vol. 237(1), pages 289-302.
    6. S Ingolfsson & B T Elvarsson, 2010. "Cyclical adjustment of point-in-time PD," Journal of the Operational Research Society, Palgrave Macmillan;The OR Society, vol. 61(3), pages 374-380, March.
    7. Sudipto Bhattacharya & Charles A.E. Goodhart & Dimitrios P. Tsomocos & Alexandros P. Vardoulakis, 2015. "A Reconsideration of Minsky's Financial Instability Hypothesis," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 47(5), pages 931-973, August.
    8. Benjamin Tabak & Daniel Cajueiro & Dimas Fazio, 2013. "Financial fragility in a general equilibrium model: the Brazilian case," Annals of Finance, Springer, vol. 9(3), pages 519-541, August.
    9. Panayiotis P. Athanasoglou & Ioannis Daniilidis, 2011. "Procyclicality in the banking industry: causes, consequences and response," Working Papers 139, Bank of Greece.

    More about this item

    JEL classification:

    • D58 - Microeconomics - - General Equilibrium and Disequilibrium - - - Computable and Other Applied General Equilibrium Models
    • E44 - Macroeconomics and Monetary Economics - - Money and Interest Rates - - - Financial Markets and the Macroeconomy
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G38 - Financial Economics - - Corporate Finance and Governance - - - Government Policy and Regulation

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