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An Alternative Model to Basel Regulation

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  • Sofiane Aboura

    ()
    (CEREG - Centre de Recherche sur la gestion et la Finance - DRM UMR 7088 - Université Paris IX - Paris Dauphine)

  • Emmanuel Lépinette

    ()
    (CEREMADE - CEntre de REcherches en MAthématiques de la DEcision - CNRS : UMR7534 - Université Paris IX - Paris Dauphine)

Abstract

The post-crisis financial reforms address the need for systemic regulation, focused not only on individual banks but also on the whole financial system. The regulator principal objective is to set banks' capital requirements equal to international minimum standards in order to mimimise systemic risk. Indeed, Basel agreement is designed to guide a judgement about minimum universal levels of capital and remains mainly microprudential in its focus rather than being macroprudential. An alternative model to Basel framework is derived where systemic risk is taken into account in each bank's dynamic. This might be a new departure for prudential policy. It allows for the regulator to compute capital and risk requirements for controlling systemic risk. Moreover, bank regulation is considered in a two-scale level, either at the bank level or at the system-wide level. We test the adequacy of the model on a data set containing 19 banks of 5 major countries from 2005 to 2012. We compute the capital ratio threshold per year for each bank and each country and we rank them according to their level of fragility. Our results suggest to consider an alternative measure of systemic risk that requires minimal capital ratios that are bank-specific and time-varying.

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Paper provided by HAL in its series Working Papers with number hal-00825018.

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Date of creation: 19 Jul 2013
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Handle: RePEc:hal:wpaper:hal-00825018

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Keywords: Systemic risk; Bank Regulation; Basel Accords;

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  1. Nikola Tarashev & Claudio Borio & Kostas Tsatsaronis, 2009. "The systemic importance of financial institutions," BIS Quarterly Review, Bank for International Settlements, September.
  2. Helmut Elsinger & Alfred Lehar & Martin Summer, 2006. "Risk Assessment for Banking Systems," Management Science, INFORMS, vol. 52(9), pages 1301-1314, September.
  3. Kabanov, Yuri & Lépinette, Emmanuel, 2013. "Essential supremum with respect to a random partial order," Journal of Mathematical Economics, Elsevier, vol. 49(6), pages 478-487.
  4. Bertrand, Marianne & Schoar, Antoinette S & Thesmar, David, 2004. "Banking Deregulation and Industry Structure: Evidence from the French Banking Reforms of 1985," CEPR Discussion Papers 4488, C.E.P.R. Discussion Papers.
  5. Alan D. Morrison & Lucy White, 2005. "Crises and Capital Requirements in Banking," American Economic Review, American Economic Association, vol. 95(5), pages 1548-1572, December.
  6. Patrick Slovik & Boris Cournède, 2011. "Macroeconomic Impact of Basel III," OECD Economics Department Working Papers 844, OECD Publishing.
  7. Brei, Michael & Gambacorta, Leonardo & von Peter, Goetz, 2013. "Rescue packages and bank lending," Journal of Banking & Finance, Elsevier, vol. 37(2), pages 490-505.
  8. Lucy White & Alan D. Morrison, 2002. "Crises and Capital Requirements in Banking," OFRC Working Papers Series 2002fe05, Oxford Financial Research Centre.
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