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How to make regulators and shareholders happy under Basel III

Author

Listed:
  • Schmaltz, Christian
  • Pokutta, Sebastian
  • Heidorn, Thomas
  • Andrae, Silvio

Abstract

In addition to the Basel II capital ratio, Basel III requires banks to respect additional ratios, such as leverage ratio, liquidity coverage ratio and net stable funding ratio. Banks are required to be compliant with all four constraints simultaneously. Our article provides a framework for banks to help their search for an optimal transition from Basel II to Basel III. Recognizing that banks’ return and the four constraints are of linear type, this search can be formulated as a linear program and solved by standard software. Incorporating uncertainty on future defaults, risk weights and withdrawals and formulating the problem as a Chance constrained model does not only yield optimal transition strategies but also determines the internal thresholds for the Basel III-ratios. Our approach needs two standard inputs from controlling: profit margins per product and non-financial adjustment costs to expand or cut back business. The adjustment cost can be used to calibrate the model to the current business mix. This calibration can be done by bank outsiders and allows the model to be used in impact studies to replace ad hoc strategies. To highlight its practicality, we apply our model to a typical German bank with a business mix that complies with Basel II, but not with the Basel III-, capital-, leverage- and net stable funding-ratio. Assuming that its business model is optimal under Basel II, we find that this bank would achieve compliance restructuring its funding side by replacing interbank funding by capital and retail deposits. Additional uncertainty would amplify the magnitude of the changes, but would still affect the same positions. These findings are robust against alternative margin definitions and adjustment cost levels.

Suggested Citation

  • Schmaltz, Christian & Pokutta, Sebastian & Heidorn, Thomas & Andrae, Silvio, 2014. "How to make regulators and shareholders happy under Basel III," Journal of Banking & Finance, Elsevier, vol. 46(C), pages 311-325.
  • Handle: RePEc:eee:jbfina:v:46:y:2014:i:c:p:311-325
    DOI: 10.1016/j.jbankfin.2014.05.031
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    References listed on IDEAS

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    1. Paolo Angelini & Laurent Clerc & Vasco Cúrdia & Leonardo Gambacorta & Andrea Gerali & Alberto Locarno & Roberto Motto & Werner Roeger & Skander Van den Heuvel & Jan Vlček, 2015. "Basel III: Long-term Impact on Economic Performance and Fluctuations," Manchester School, University of Manchester, vol. 83(2), pages 217-251, March.
    2. Di Nicolo, G. & Gamba, A. & Lucchetta, M., 2011. "Capital Regulation, Liquidity Requirements and Taxation in a Dynamic Model of Banking," Discussion Paper 2011-090, Tilburg University, Center for Economic Research.
    3. Emanuel Kopp & Christian Ragacs & Stefan W. Schmitz, 2010. "The Economic Impact of Measures Aimed at Strengthening Bank Resilience – Estimates for Austria," Financial Stability Report, Oesterreichische Nationalbank (Austrian Central Bank), issue 20, pages 86-114.
    4. Michael R King, 2010. "Mapping capital and liquidity requirements to bank lending spreads," BIS Working Papers 324, Bank for International Settlements.
    5. Douglas Elliott & Andre O Santos, 2012. "Assessing the Cost of Financial Regulation," IMF Working Papers 12/233, International Monetary Fund.
    6. Thomas F. Cosimano & Dalia S Hakura, 2011. "Bank Behavior in Response to Basel Iii; A Cross-Country Analysis," IMF Working Papers 11/119, International Monetary Fund.
    7. Patrick Slovik & Boris Cournède, 2011. "Macroeconomic Impact of Basel III," OECD Economics Department Working Papers 844, OECD Publishing.
    8. Dániel Holló, 2010. "Estimating Price Elasticities on the Hungarian Consumer Lending and Deposit Markets: Demand Effects and Their Possible Consequences," Focus on European Economic Integration, Oesterreichische Nationalbank (Austrian Central Bank), issue 1, pages 73-89.
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    Citations

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    Cited by:

    1. repec:eee:jfinin:v:34:y:2018:i:c:p:32-46 is not listed on IDEAS
    2. repec:bla:ecnote:v:46:y:2017:i:1:p:105-115 is not listed on IDEAS
    3. DeYoung, Robert & Distinguin, Isabelle & Tarazi, Amine, 2018. "The joint regulation of bank liquidity and bank capital," Journal of Financial Intermediation, Elsevier, vol. 34(C), pages 32-46.
    4. repec:eee:finana:v:57:y:2018:i:c:p:77-89 is not listed on IDEAS
    5. Schmitt, Matthias & Schmaltz, Christian, 2016. "Potential implications of a NSFR on German banks' credit supply and profitability," Discussion Papers 37/2016, Deutsche Bundesbank.
    6. M. Birn & M. Dietsch & D. Durant, 2017. "How to reach all Basel requirements at the same time?," Débats économiques et financiers 28, Banque de France.
    7. de Ramon, Sebastian & Francis, William & Milonas, Kristoffer, 2017. "An overview of the UK banking sector since the Basel Accord: insights from a new regulatory database," Bank of England working papers 652, Bank of England.
    8. Robert Deyoung & Isabelle Distinguin & Amine Tarazi, 2017. "Bank Liquidity Management and Bank Capital Shocks," Working Papers hal-01559053, HAL.
    9. Torchiani, Ingo & Heidorn, Thomas & Schmaltz, Christian, 2017. "An integrated shortfall measure for Basel III," Discussion Papers 26/2017, Deutsche Bundesbank.

    More about this item

    Keywords

    Basel III; Linear programming; Capital ratio; Leverage ratio; LCR; NSFR;

    JEL classification:

    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • C61 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Optimization Techniques; Programming Models; Dynamic Analysis

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