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Banks’ optimal implementation strategies for a risk sensitive regulatory capital rule: a real options and signalling approach


  • Kjell Bjørn Nordal

    (Norges Bank (Central Bank of Norway))


I evaluate a bank's incentives to implement a risk sensitive regulatory capital rule and to invest in improved risk measurement. The decision making is analyzed within a real options framework where optimal policies are derived in terms of threshold levels of risk. I also evaluate the situation where exercise or non-exercise of the options to implement or invest are signals about the underlying quality of the loan portfolio. The framework is used for a numerical evaluation of banks' decision of whether to use internal rating based models for credit risk (the IRB-approach) under the new Basel accord (Basel II), where the dynamic behavior of risk is described by an Ohrnstein-Uhlenbeck process. I discuss empirical implications of the evaluation framework.

Suggested Citation

  • Kjell Bjørn Nordal, 2006. "Banks’ optimal implementation strategies for a risk sensitive regulatory capital rule: a real options and signalling approach," Working Paper 2006/12, Norges Bank.
  • Handle: RePEc:bno:worpap:2006_12

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    References listed on IDEAS

    1. Acharya, Sankarshan, 1988. " A Generalized Econometric Model and Tests of a Signalling Hypothesis with Two Discrete Signals," Journal of Finance, American Finance Association, vol. 43(2), pages 413-429, June.
    2. Berger, Allen N. & Herring, Richard J. & Szego, Giorgio P., 1995. "The role of capital in financial institutions," Journal of Banking & Finance, Elsevier, vol. 19(3-4), pages 393-430, June.
    3. Allen N. Berger & Gregory F. Udell, 2002. "Small Business Credit Availability and Relationship Lending: The Importance of Bank Organisational Structure," Economic Journal, Royal Economic Society, vol. 112(477), pages 32-53, February.
    4. Jensen, Michael C, 1986. "Agency Costs of Free Cash Flow, Corporate Finance, and Takeovers," American Economic Review, American Economic Association, vol. 76(2), pages 323-329, May.
    5. Schwartz, Eduardo S, 1997. " The Stochastic Behavior of Commodity Prices: Implications for Valuation and Hedging," Journal of Finance, American Finance Association, vol. 52(3), pages 923-973, July.
    6. Mitchell A. Petersen & Raghuram G. Rajan, 2002. "Does Distance Still Matter? The Information Revolution in Small Business Lending," Journal of Finance, American Finance Association, vol. 57(6), pages 2533-2570, December.
    7. Nordal, Kjell B., 2001. "Country risk, country risk indices and valuation of FDI: a real options approach," Emerging Markets Review, Elsevier, vol. 2(3), pages 197-217, September.
    8. Miller, Merton H., 1995. "Do the M & M propositions apply to banks?," Journal of Banking & Finance, Elsevier, vol. 19(3-4), pages 483-489, June.
    9. Myers, Stewart C., 1984. "Capital structure puzzle," Working papers 1548-84., Massachusetts Institute of Technology (MIT), Sloan School of Management.
    10. Jeremy C. Stein, 2002. "Information Production and Capital Allocation: Decentralized versus Hierarchical Firms," Journal of Finance, American Finance Association, vol. 57(5), pages 1891-1921, October.
    11. Myers, Stewart C, 1984. " The Capital Structure Puzzle," Journal of Finance, American Finance Association, vol. 39(3), pages 575-592, July.
    12. Stewart C. Myers, 1984. "Capital Structure Puzzle," NBER Working Papers 1393, National Bureau of Economic Research, Inc.
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    More about this item


    Risk measurement; capital structure; real options; Basel II;

    JEL classification:

    • G13 - Financial Economics - - General Financial Markets - - - Contingent Pricing; Futures Pricing
    • 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
    • G32 - Financial Economics - - Corporate Finance and Governance - - - Financing Policy; Financial Risk and Risk Management; Capital and Ownership Structure; Value of Firms; Goodwill

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