Prudential bank regulation: present and future Speech given by Vicky Saporta, Executive Director for Prudential Policy, Bank of England  Westminster Business Forum Keynote Seminar: Building a resilient UK financial sector – next steps for prudential regulation, structural reform and mitigating risks  4 July 2018  I would like to thank Matthew Willison for working with me on this speech. Thanks are also due to Thom Adcock, Omar Ahmed, Dana Andreicut, Tamiko Bayliss, Stuart Dossett, Orlando Fernandez Ruiz, Mariana Gimpelewicz, Marc Hinterschweiger, Alex Holmes, Antoine Lallour, Jack Leslie, Damien Lynch, Sinead O’Leary-Barrett, Sam Miller, David Murphy, Santosh Pandit, Thomas Papavranoussis, Rajan Patel, Joshua Plank, Jakob Schedlbauer, Jon Sepanski, Dominic Shaw, Jonathan Smith, Ruth Smith, Anthony Veal, and Sam Woods for contributions and comments. 1  All speeches are available online at www.bankofengland.co.uk/speeches  Introduction  I am pleased to be here today to give this speech. The Westminster Business Forum has a fascinating agenda – from policy priorities for UK manufacturing, to the development of FinTech, even the future of the UK space industry! And your roots are in Parliament, which gives the Bank of England its objectives to maintain monetary and financial stability. Today is also a special day for me personally. Exactly two years ago, on 4 July 2016, I was appointed in my current role as Executive Director for Prudential Policy.
The peer group includes Barclays, Cooperative Banking Group, HSBC, Lloyds Banking Group, Nationwide, RBS and Santander UK. (d) From 2018, Basel III Tier 1 capital ratios reflect IFRS 9 transitional arrangements as agreed in European law. (e) Series begins at end-2007. Chart 2: UK banks’ holdings of liquid assets Liquidity Buffer  (a)(b)(c)(d)(e)  LCR HQLA  £ 800 750 700 650 600 550 500 450 400 350 300  2009 2010 2011 2012 2013 2014 2015 2016 2017 Source: PRA regulatory returns (a) UK liquidity consolidation groups for major 7 UK banks. (b) DLG consolidation is applied to Barclays, HSBC, Lloyds, RBS and Santander UK, whilst solo UK entities are shown for Nationwide and Standard Chartered. (c) Liquidity buffer refers to the liquidity held under the ILG regime, which is reported weekly until at least July 2019. (d) LCR HQLA refers to high quality liquid assets under the EU Delegated Act (reported monthly since October 2015). (e) Definition of liquid assets is broader under the LCR. 17  All speeches are available online at www.bankofengland.co.uk/speeches  17  Chart 3: Modelling errors in market risk (10 years of data)  (a)(b)(c)  Variance Squared bias MSPE  4.50E-05 4.00E-05 3.50E-05 3.00E-05 2.50E-05 2.00E-05 1.50E-05 1.00E-05 5.00E-06 0.00E+00 1  2  3  4  5  Past days modelled Source: Hinterschweiger, Neumann, and Saporta (2018), ‘Risk sensitivity and risk shifting in banking regulation’, Bank of England Financial Stability Paper No.44 (a) True model is number 3.