Page 3
(b) If the series starts after 1987, the average between the start date and 2006 end and the maximum/minimum
since the start date are used.
(c) 2006 was the last year before the start of the global financial crisis.
(d) Credit is defined as debt claims on the UK private non-financial sector. This includes all liabilities of the
household sector except for student loans and financial derivatives, and private non-financial corporations’
(PNFCs') loans and debt securities excluding direct investment loans and loans secured on dwellings. The
credit to GDP gap is calculated as the percentage point difference between the credit to GDP ratio and its long-
term trend, where the trend is based on a one-sided Hodrick-Prescott filter with a smoothing parameter of
400,000. See Countercyclical Capital Buffer Guide at www.bankofengland.co.uk/financial-stability for further
explanation of how this series is calculated. Sources: Association of British Insurers, Bank of England, Bayes
CRE Lending Report (Bayes Business School(formerly Cass)), Deloitte, Financing & Leasing Association, firm
public disclosures, Integer Advisors estimates, LCD an offering of S&P Global Market Intelligence, London
Stock Exchange, ONS, Peer-to-Peer FinanceAssociation, Eikon from Refinitiv, Roe A.R. (1971) - 'The financial
interdependence of the UK economy 1957-66' - Chapman and Hall - London, UK Finance and Bank
calculations.
(e) Twelve-month growth rate of nominal credit (defined as the four-quarter cumulative net flow of credit as a
proportion of the stock of credit twelve months ago). Credit is defined as above. Sources: Association of British
Insurers, Bank of England, Bayes CRE Lending Report (Bayes Business School(formerly Cass)), Deloitte,
Financing & Leasing Association, firm public disclosures, Integer Advisors estimates, LCD an offering of S&P
Global Market Intelligence, London Stock Exchange, ONS, Peer-to-Peer FinanceAssociation, Eikon from
Refinitiv, UK Finance and Bank calculations.
(f) Ratios computed using a four-quarter moving sum of GDP. Sources: ONS and Bank calculations.
(g) Five-year real interest rates five years forward, implied from inflation swaps and nominal fitted yields. Data
series runs from October 2004. Sources: Bloomberg Finance L.P., Tradeweb and Bank calculations.
(h) 22-day moving average. The VIX is a measure of market expectations of 30-day volatility as conveyed by
S&P 500 stock index options prices. Sources: Bloomberg Finance L.P. and Bank calculations.
(i) Sources: ICE BofAML & Bank Calculations.
(j) Global corporate bond spreads refers to a 22-day moving average of the global aggregate market non-
financial, non-utility corporate bond spread. This tracks the performance of investment-grade corporate debt
publicly issued in the global and regional markets from both developed and emerging market issuers. Index
constituents are weighted based on market value. Spreads are option-adjusted (ie they show the number of
basis points the matched-maturity government spot curve needs to be shifted in order to match a bond’s present
value of discounted cash flows). Prior to 2016, published versions of this indicator showed the ICE/BofAML
Global Industrial Index. Sources: Barclays and Bank calculations.
(k) Unless otherwise stated, indicators are based on the major UK bank peer group defined as: Abbey National
(until 2003); Alliance & Leicester (until 2007); Bank of Ireland (from 2005); Bank of Scotland (until 2000);
Barclays; Bradford & Bingley (from 2001 until 2007); Britannia (from 2005 until 2008); Co-operative Banking
Group (from 2005); Halifax (until 2000); HBOS (from 2001 until 2008); HSBC (from 1992); Lloyds TSB/Lloyds
Banking Group; Midland (until 1991); National Australia Bank (from 2005 until February 2015); National
Westminster (until 1999); Nationwide; Northern Rock (until 2011); Royal Bank of Scotland; Santander (from
2004); TSB (until 1994); Virgin Money (from 2012) and Woolwich (from 1990 until 1997). Accounting changes,
eg the introduction of IFRS in 2005, result in discontinuities in some series. Restated figures are used where
available.
(l) From 2014, the ‘Basel III Tier 1 capital ratio’ is calculated as Tier 1 capital over risk-weighted assets. The
CET1 element within Tier 1, RWAs and the CET1 capital ratio are according to the Basel III definition as
implemented in the United Kingdom. The additional Tier 1 element within Tier 1 excludes legacy instruments
and other transitional adjustments. Prior to 2014, the chart shows Bank estimates; within the Tier 1 ratio
preference shares are used as a proxy for additional Tier 1 capital. The peer group includes Barclays, HBOS
(until 2008), HSBC, Lloyds TSB (until 2008), Lloyds Banking Group (from 2009), Nationwide, NatWest,
Santander UK, Standard Chartered and Virgin Money UK (from end-2020). From 2018, Basel III Tier 1 and
CET1 capital ratios reflect IFRS 9 transitional arrangements. Sources: PRA regulatory returns, published
accounts and Bank calculations.