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The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004.

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Page 1: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

The Role of the BIS – The Basel Capital Accords

Saunders & Allen, Chapter 3

Basel Committee, “Revised Framework,” June 2004.

Page 2: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

BIS I

• Major Focus: distinguish credit risk of sovereign, bank and mortgage obligations from non-bank private sector or commercial loan obligations

• Not to differentiate the credit risk exposure within the commercial load classification

• Issue: regulatory capital arbitrage activities

Page 3: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

BIS II

• To correct the mispricing inherent in BIS I• To incorporate more risk sensitive credit exposure

measures into bank capital requirement• Key motivations

– Structural change in credit markets

– Remove inefficiencies in lending market

– Correlation among economic cycle, debt levels, and a potential debt servicing crisis

Page 4: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

Part 1: Scope of Application

Part 3The Second

Pillar -Supervisory

Review Process

Part 4:The Third Pillar

-MarketDiscipline

Part 2:The First Pillar

-Minimum Capital Requirements

I. Calculation of minimumcapital requirements

II. Credit risk-The

StandardizedApproach

III. Credit Risk-The Internal

Ratings BasedApproach

IV. Credit Risk-Securitization

Framework

V. Operational

Risk

VI.Trading Book

Issues(including

Market risk)

Page 5: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

Pillar 1

• A three step evolutionary paradigm– Standardized Model

– Foundations Approach Internal Ratings-Based (IRB) Model

– Advanced IRB Model

• Regulatory Total Capital-unchanged total amount– Credit Risk Capital Requirement

– Market Risk Capital Requirement

– Operational Risk Capital Requirement

Page 6: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

Credit Risk The Standardized Approach

• Based on External Credit Assessment Institutions (e.g., credit rating agencies) that must:– Be objective– Be independent– Provide international access & transparency– Offer full disclosure– Have sufficient resources– Be Credible

Page 7: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

Credit Risk – The Standardized Approach

Credit

Assessment

AAA to

AA-

A+ to A- BBB+ to BBB-

BB+ to B- Below B- Unrated

Risk Weight 0% 20% 50% 100% 150% 100%

Claims on Sovereigns

Claims on sovereigns and their central banks will be risk weighted as follows:

Creditassessment of Sovereign

AAA to

AA-

A+ to A- BBB+ to BBB-

BB+ to B- Below B- Unrated

Risk weight under

Option 1

20% 50% 100% 100% 150% 100%

Claims on Banks

There are two options for claims on banks. National supervisors will apply one optionTo all banks in their jurisdiction. No claim on an unrated bank may receive a risk weightLower than that applied to claims on its sovereign of incorporation.

Option 1

Page 8: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

Credit assessment of Banks

AAA to

AA-

A+ to A- BBB+ to BBB-

BB+ to B- Below B- Unrated

Risk weight under

Option 2

20% 50% 50% 100% 150% 50%

Risk weight for short-term claims22 under Option 2

20% 50% 100% 100% 150% 100%

Option 2

Short Term Exposures (e.g., commercial paper) A-1/P-1 A-2/P-2 A-3/P-3 Others

Risk Weight 20% 50% 100% 150%

Page 9: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

Claims on corporate

The table provided below illustrates the risk weighting of rated corporate claims, including claims on insurance companies. The standard risk weight for unrated claims on corporates will be 100%. No claim on an unrated corporate may be given a risk weight preferential to that assigned to its sovereign of incorporation.

Credit Assessment AAA to AA-

A+ to A- BBB+ to BB- Below BB-

Unrated

Risk Weight 20% 50% 100% 150% 100%

Claims included in the regulatory retail portfolios

Claims that may be considered as retail claims for regulatory capital purposes and included in a regulatory retail portfolio. Exposures included in such a portfolio may be risk-weighted at 75%.

Page 10: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

Regulatory Retail Portfolios

• Exposure to individuals or small businesses• Revolving credit, credit card & overdrafts,

lines of credit, personal term loans, small business facilities

• Must be sufficiently granular (no single counterparty has > 0.20% of overall)

• Maximum exposure to a single counterparty is less than 1 million euros.

Page 11: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

Claims secured by residential property

Lending fully secured by mortgages on residential property that is or will be occupied by the borrower, or that is rented, will be risk weighted at 35%.

Claim secured by commercial real estate

In view of the experience in numerous countries that commercial property lending has been a recurring cause of troubled assets in the banking industry over the past few decades, mortgages on commercial real estate do not, in principle, justify other than a 100% weighting of the loans secured.

Higher-risk categories

The following claims will be risk weighted at 150% or higher:

• Claims on sovereigns, PSEs, banks, and securities firms rated below B-.• Claims on corporates rated below BB-.• Past due loans.• Securitization tranches that are rated between BB+ and BB- will be risk weighted at 350%.

Page 12: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

Off-balance sheet items

Off-balance sheet items under the standardized approach will be converted into credit exposure equivalents through the use of credit conversion factors (CCF).

Commitments with an original maturity up to one year and commitments with an original maturity over one year will receive a CCF of 20% and 50%, respectively. However, any commitments that are unconditionally cancelable at any time by the bank without prior notice, or that effectively provide for automatic cancellation due to deterioration in a borrower’s creditworthiness, will receive a 0% CCF.

Use either the simple approach or the comprehensive approach in the banking book. The trading book must use the comprehensive approach.

1. The simple approach

In the simple approach the risk weighting of the collateral instrument collateralizing or partially collateralizing the exposure is substituted for the risk weighting of the counterparty (subject to a 20% floor).

The Standardized Approach – Credit Risk Mitigation

Page 13: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

2. The comprehensive approach

Calculation of capital requirement

For a collateralized transaction, the exposure amount after risk mitigation is calculated as follows:

E* = max {0, [E x (1 + He) – C x (1 – Hc – Hfx)]}where:E* = the exposure value after risk mitigation

E = current value of the exposure

He = haircut appropriate to the exposure

C = the current value of the collateral received

Hc = haircut appropriate to the collateral

Hfx = haircut appropriate for currency mismatch between the collateral and exposure

The exposure amount after risk mitigation will be multiplied by the risk of the counterparty to obtain the risk-weighted asset amount for the collateralized transaction.

Page 14: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

Haircuts can be either established by the supervisor or the bank’s own estimates of volatility:Own estimates for haircut

The calculation of the exposure E* for banks using their internal market risk model will be the following:

E* = max {0, [ΣE – ΣC) + (VaR output from internal market risk model x multiplier)]}

The multiplier ranges between 1 and 1.33 depending on annual backtesting of the bank’s own estimate of volatility. Exceptions = daily volatility – VaR estimateGreen Light (multiplier=1) if exceptions <99; Red light (multiplier=1.33) if exceptions >200; Yellow light (multiplier between 1-1.33) if between 100-199 exceptions.

Credit Risk – The Internal Ratings-Based Approach

Foundation and advanced approachesUnder the foundation approach, as a general rule, banks provide their

own estimated of PD and rely on supervisory estimates for other risk components. Under the advanced approach, banks provide more of their own estimates of PD, LGD and EAD, and their own calculation of M, subject to meeting minimum standards. For both the foundation and advanced approaches, banks must always use the risk-weight functions provided in this Framework for the purpose of deriving capital requirements.

Page 15: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

Assessment of Standardized Model

• Insufficient risk sensitivity in the proposed risk buckets

• Issue of “unrated” risk bucket• Tying capital requirements to external rating

– Heterogeneity within each rating class– Rating may be lagging indicator– May lead to regulatory attempts to influence rating

agencies– Risk of rating shopping– Loss of bank’s private information.

Page 16: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

Assessment of Standardized Model

• Inconsistency in concept: attributes the function of assessing and monitoring credit risk to external rating agencies – banks are “delegated monitors.”– Should use standalone firm ratings, not related

to specific debt issues with protective features– Ratings are pro-cyclical. Systemic risk

increases as downgrades occur in recessions requiring additional capital at cyclical trough.

Page 17: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

IRB Models

• Two Approach– Foundation IRB Approach– Advanced IRB Approach

• Establish an internal rating model to classify the credit risk exposure of each activity

• Calibrated to a 99.9% VAR• Foundation IRB Approach

– PD – estimates of 1 year probability of default– EAD – exposure at default

Page 18: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

IRB

• Advanced IRB approach– PD, EAD– LGD – loss given default– M – maturity

• Computes risk weights by incorporating estimates of PD, EAD, LGD and M

• Model assumes that average default correlation among borrowers is 10-20%

Page 19: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

IRB

• Five elements to any IRB approach– Internal rating model– Risk components– Risk weight function– Minimum requirements of eligibility to apply

the IRB approach– Supervisory reviews of compliance with the

minimum requirement

Page 20: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

Risk Components of the IRB Approach

• PD– Probability of default

– Internal Ratings based on historical experience or credit scoring model

– Lower bound 3 basis points – no 0% risk weight

• EAD– Loan’s exposure at default – allows netting.

– Nominal (book) among for on-balance-sheet transactions

(1) Amount by which regulatory capital would be reduced if the exposure were written off fully; and (2) any additional specific provisions or write-offs.

Page 21: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

Risk Components of the IRB Approach(Continued)

• LGD = Loss Given Default Under the Foundation Approach:– 45% for senior claims not secured

– 75% for subordinated claims

– For secured claims, use the comprehensive approach under the standardized model to calculate the LGD as follows:

LGD* = LGD x (E*/E)

where LGD is the senior unsecured exposure (45%)

E is the current value of the exposure

E* is the exposure value after risk mitigation.

• LGD Under the Advanced Approach is the bank’s internal estimate of actual LGD.

Page 22: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

Risk Components of the IRB Approach(Continued)

• Effective Maturity = MFor the foundation approach, the effective maturity is 2.5 years

For the advanced approach, the effective maturity is the greater of either one year or the cash flow weighted time to maturity:

Where CFt is the cash flow contractually payable at time t.

t

tt

t CFCFt /*

Page 23: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

June 2004 Proposals:

Risk-weighted assets for corporate, sovereign, and bank exposures (UL)

Formula for derivation of risk-weighted assets

The derivation of risk-weighted assets is dependent on estimates of the PD, LGD, EAD and, in some cases, effective maturity (M), for a given exposure.

Correlation (R) = 0.12 x (1 – EXP (-50 x PD)) / (1 – EXP (-50)) + 0.24 x [1 – (1 – EXP(-50 x PD))/(1 – EXP(-50))]

Maturity adjustment (b) = (0.11852 – 0.05478 x In (PD))^2

Capital requirement (K) = [LGD x N [(1 – R)^-0.5 x G (PD) + (R/(1-R))^0.5 x G(0.999)] – PD x LGD] x (1 – 1.5 x b)^ -1 x (1 +(M – 2.5) x b)

Risk-weighted assets (RWA) = K x 12.5 x EAD

$ Capital Requirement = 8% x RWA

Page 24: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

Foundation IRB Approach: January 2001 Proposals

• RW = risk weight on corporate obligations– Calibrated to 8% capital requirement for loan with 3 yr.

maturity, PD=0.7%, and LGD=50%.– RW = (LGD/50) • BRW– BRW = benchmark risk weight (Figure 3.1)

• RWA– Risk-weighted assets– RWA = RW • EAD

BRW = 976.5 x N(1.118 x G(PD)+1.288) x (1+.0470 x (1-PD)/PD0.44) (3.2)

Page 25: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

0

700

600

500

400

300

200

100

05 10

Proposed IRB risk weights for hypothetical corporateexposure having LGD equal to 50 percent.

Source: Bank of International Settlements,“The Internal Ratings-Based Approach” (2001).

PD (Percent)

15 20

Figure 3.1

Page 26: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

(ii) Firm-size adjustments for small- and medium-sized entities (SME)

Under the IRB approach for corporate credits, banks will be permitted to separately distinguish exposures to SME borrowers (defined as corporate exposures where the reported sales for the consolidated group of which the firm is a part is less than €50 million) from those to large firms. A firm-size adjustment (i.e., 0.04 x (1- (S-5)/45)) is made to the corporate risk weight formula for exposures to SME borrowers. S is expressed as total annual sales in millions of euros with values of S falling in the range of equal to or less than €5 million will be treated as if they were equivalent to € million for the purposes of the firm-size adjustment for SME borrowers.

Correlation (R) = 0.12 x (1 – EXP (-50 x PD)) / (1 – EXP(-50)) + 0.24 x [1 – EXP(-50 x PD))/(1 – EXP(-50))] – 0.04 x (1 – (S-5)/45)

Page 27: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

Strong Good Satisfactory Weak Default

70% 90% 115% 250% 0%

Strong Good Satisfactory Weak Default

BBB- or Better BB+ or BB BB- or B+ B to C- Not applicable

Strong Good Satisfactory Weak Default

95% 120% 140% 250% 0%

(iii) Risk weights for specialized lending

Supervisory categories and UL risk weights for other SL exposures

Risk weights for HVCRE

Supervisory categories and UL risk weights for high-volatility commercial real estate

Page 28: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

Rules for Retail Exposures

(i) Residential mortgage exposures

Correlation (R) = 0.15

Capital requirement (K) = LGD x N[(1 – R)^-0.5 x G(PD) + (R / (1 – R))^0.5 x G(0.999)] – PD x LGD

Risk-weighted assets = K x 12.5 x EAD

The capital requirement (K) for a defaulted exposure is equal to the greater of zero and the difference between its LGD and the bank’s best estimate of expected loss. The risk-weighted asset amount for the defaulted exposure is the product of K, 12.5, and the EAD.

(ii) Qualifying revolving retail exposures

Correlation (R) = 0.04

Capital requirement (K) = LGD x N[(1 – R)^-0.5 x G(PD) + (R / (1 – R))^0.5 x G(0.999)] – PD x LGD

Risk-weighted assets = K x 12.5 x EAD

Page 29: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

(iii) Other retail exposures

For all other retail exposures that are not in default, risk weights are assigned based on the following function, which also allows correlation to varywith PD:

Correlation (R) = 0.03 x (1 – EXP(-35 x PD)) / (1 – EXP(-35)) + 0.16 x [1 – (1 – EXP(-35 x PD))/(1 – EXP(-35))]

Capital requirement (K) = LGD x N[(1 – R)^-0.5 x G(PD) + (R / (1 – R))^0.5 x G(0.999)] – PD x LGD

Risk – weighted assets = K x 12.5 x EAD

Page 30: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

Illustrative IRB Risk Weights

The following tables provide illustrative risk weights calculated for four

asset classes types under the internal ratings-based (IRB) approach to credit

risk. Each set of risk weights for unexpected loss (UL) was produced using

the appropriate risk-weight function of the risk-weight functions. The inputs

used to calculate the illustrative risk weights include measures of the PD,

LGD, and an assumed effective maturity (M) of 2.5 years.

A firm-size adjustment applies to exposures made to small- and medium-

sized entity (SME) borrowers (defined as corporate exposures where the

reported sales for the consolidated group of which the firm is a part is less

than €50 million). Accordingly, the firm size adjustment was made in

determining the second set of risk weights provided in column two given that

the turnover of the firm receiving the exposure is assumed to be €5 million

Page 31: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

Asset Class:

LGD:

Maturity: 2.5

Turnover

(millions of €)

Corporate Exposures

(Big) (SME)

45% 45%

50 5

Residential Mortgages

45% 25%

Other Retail Exposures

45% 85%

Qualifying Revolving Retail Exposures

45% 85%

PD:

0.03%

0.05%

0.10%

0.25%

0.40%

0.50%

0.75%

1.00%

1.30%

1.50%

2.00%

2.50%

3.00%

4.00%

5.00%

6.00%

10.00%

15.00%

20.00%

14.44% 11.30%

19.65% 15.39%

29.65% 23.30%

49.47% 39.01%

62.72% 49.49%

69.61% 54.91%

82.78% 65.14%

92.32% 72.40%

100.95% 78.77%

105.59% 82.11%

114.86% 88.55%

122.16% 93.43%

128.44% 97.58%

139.58% 105.04%

149.86% 112.27%

159.61% 119.48%

193.09% 146.51%

221.54% 171.91%

238.23% 188.42%

4.15% 2.30%

6.23% 3.46%

10.69% 5.94%

21.30% 11.83%

29.94% 16.64%

35.08% 19.49%

46.46% 25.81%

56.40% 31.33%

67.00% 37.22%

73.45% 40.80%

87.95% 48.85%

100.64% 55.91%

111.99% 62.22%

131.63% 73.13%

148.22% 82.35%

162.52% 90.29%

204.41% 113.56%

235.72% 130.96%

253.12% 140.62%

4.45% 8.41%

6.63% 12.52%

11.16% 21.08%

21.15% 39.96%

28.42% 53.69%

32.36% 61.13%

40.10% 75.74%

45.77% 86.46%

50.80% 95.95%

53.37% 100.81%

57.99% 109.81%

60.90% 115.03%

62.79% 118.61%

65.01% 122.80%

66.42% 125.45%

67.73% 127.94%

75.54% 142.69%

88.60% 167.36%

100.28% 189.41%

0.98% 1.85%

1.51% 2.86%

2.71% 5.12%

5.76% 10.88%

8.41% 15.88%

10.04% 18.97%

13.80% 26.06%

17.22% 32.53%

21.02% 39.70%

23.40% 44.19%

28.92% 54.63%

33.98% 64.18%

38.66% 73.03%

47.16% 89.08%

54.75% 103.41%

61.61% 116.37%

83.89% 158.47%

103.89% 196.23%

117.99% 222.86%

Illustrative IRB Risk Weights for UL

Page 32: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

Assessment of IRB Model

• BIS II is a great improvement over BIS I in its sophistication in measuring credit risk

• Moves regulatory capital in the direction of economic capital

• Far from an integrated portfolio management approach to credit risk measure

• Capital requirements are likely to be higher than economically necessary when considering actual portfolio correlation

Page 33: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

Assessment (cont.)

• Foundation IRB – correlations inversely related to PD: not empirically observed.

• Advanced IRB contains properties that may distort bank incentives to manage their credit risk exposure– Maturity adjustment– Penalized increases in LGD more than increase

in PD

Page 34: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

Operational Risk

Definition of operation riskOperational risk is defined as the risk of loss resulting from inadequate or

failed internal processes, people and systems or from external events. This definition includes legal risk, but excludes strategic and reputational risk.

Legal risk includes, but is not limited to, exposure to fines, penalties, or punitive damages resulting from supervisory actions, as well as private settlements.

The measurement methodologiesThe framework outlined below presents three methods for calculating

operational risk capital charges in a continuum of increasing sophistication and risk sensitivity: (i) the Basic Indicator Approach; (ii) the Standardized Approach; and (iii) Advanced Measurement Approaches (AMA).

Page 35: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

The Basic Indicator Approach

Banks using the Basic Indicator Approach must hold capital for operational risk equal to the average over the previous three years of a fixed percentage (denoted alpha) of positive annual gross income. Figures for any year in which annual gross income is negative or zero should be excluded from both the numerator and denominator when calculating the average. The charge may be expressed as follows:

KBIA = [Σ(GI1…3 x )]/n

where

KBIA= the capital charge under the Basic Indicator Approach

GI = annual gross income, where positive, over the previous three years

n = number of the previous three years for which gross income is positive

= 15%, which is set by the Committee, relating the industry wide level of required capital to the industry wide level of the indicator.

Page 36: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

Gross income is defined as net interest income plus net non-interest income. It is intended that this measure should: (i) be gross of any provisions (e.g., for unpaid interest); (ii) be gross of operating expenses, including fees paid to outsourcing service providers, (iii) exclude realized profits/losses form the sale ofsecurities in the banking book, and (iv) exclude extraordinary or irregular items as well as income derived from insurance

2. The Standardized Approach

In the Standardized Approach, banks’ activities are divided into eight business lines: corporate finance, trading & sales, retail banking, commercial banking, payment & settlement, agency services, asset management, and retail brokerage.

Within each business line, gross income is a broad indicator that serves as a proxy for the scale of business operations and thus the likely scale of operational risk exposure within each of these business lines. The capital charge for each business line is calculated by multiplying gross income by a factor (denoted beta)assigned to that business line. Beta serves as a proxy for the industry-wide relationship between the operational risk loss experience for a given business lineand the aggregate level of gross income for that business line. It should be noted that in the Standardized Approach gross income is measured for each business line, not the whole institution, i.e., corporate finance, the indicator is the gross income generated in the corporate finance business line.

Page 37: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

The total capital charge is calculated as the three-year average of the simplesummation of the regulatory capital charges across each of the business lines in each year. In any given year, negative capital charges (resulting form negative gross income) in any business line may offset positive capital charges in other business lines without limit. However, where the aggregate capital charge across all business lines within a given year is negative, then the input to the numerator for that year will be zero. The total capital charge my be expressed as:

KTSA = {Σyears 1-3 max[Σ(GI1-8 x 1-8),0]}/3

where

KTSA = the capital charge under the Standardized Approach

GI1-8 = annual gross income in a given year, as defined above in the Basic

Indicator Approach, for each of the eight business lines.

Page 38: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

1-8 = a fixed percentage, set by the Committee, relating the level of required capital to the level of the gross income for each of the eight business lines. The values of the betas are detailed below

Business Lines Beta Factors

Corporate finance (1)

Trading and sales (2)

Retail banking (3)

Commercial banking (4)

Payment and settlement 5)

Agency services (6)

Asset management (7)

Retail brokerage (8)

18%

18%

12%

15%

18%

15%

12%

12%

Page 39: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

Level 1 Level 2 Activity Groups

Corporate Finance

Corporate Finance

Municipal/Gov’t Finance

Merchant Banking

Advisory Services

Mergers and acquisitions, underwriting, privatizations, securitization, research, debt (gov’t, high yield), equity, syndications, IPO, secondary private placements

Trading & Sales

Sales

Market Making

Proprietary Positions

Treasury

Fixed income, equity, foreign exchanges, commodities, credit, funding, own position securities, lending and repos, brokerage, debt, prime brokerage

Retail Banking

Retail Banking

Private Banking

Card Services

Retail lending and deposits, banking services, trust and estates

Private lending and deposits, banking services, trust and estates, investment advice

Merchant/commercial/corporate cards, private labels and retail

Standardized Approach Mapping of Business Lines

Page 40: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

Commercial Banking Commercial Banking Project finance, real estate, export finance, trade finance, factoring, leasing, lending, guarantees, bills of exchange

Payment & Settlement External Clients Payments and collections, funds transfer, clearing and settlement

Agency Services Custody

Corporate Agency

Corporate Trust

Escrow, depository receipts, securities lending (customers) corporate actions

Issuer and paying agents

Asset Management Discretionary Fund

Non-Discretionary

Fund Management

Pooled, segregated, retail, institutional, closed, open, private equity

Pooled, segregated, retail, institutional, closed, open

Retail Brokerage Retail Brokerage Execution and full service

Mapping of Business Lines cont’d……..

Page 41: The Role of the BIS – The Basel Capital Accords Saunders & Allen, Chapter 3 Basel Committee, “Revised Framework,” June 2004

The Alternative Standardized Approach (upon supervisory discretion)

Under the ASA, the operational risk capital charge/methodology is the same asfor the Standardized Approach except for two business lines – retail banking andcommercial banking. For these business lines, loans and advances – multiplied by a fixed factor ‘m’ – replaces gross income as the exposure indicator. The betas for retail and commercial banking are unchanged from the Standardized Approach. The ASA operational risk capital charge for retail banking (with the same basic formula for commercial banking) can be expressed as:

KRB = RB x m x LARB

Where

KRB is the capital charge for the retail banking business line

RB is the beta for the retail banking business line

LARB is total outstanding retail loans and advances (non-risk weighted and gross of provisions), averaged over the past three years

m is 0.035

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For the purposes of the ASA, total loans and advances in the retail banking business line consists of the total drawn amounts in the following credit portfolios:retail, SMEs treated as retail, and purchased retail receivables. For commercial banking, total loans and advances consists of the drawn amounts in the following credit portfolios: corporate, sovereign, bank, specialized lending, SMEs treated as corporate and purchased corporate receivables. The book value of securities held in the banking book should also be included.

Under the ASA, banks may aggregate retail and commercial banking (if they wishto) using a beta of 15%. Similarly, those banks that are unable to disaggregate their gross income into the other six business lines can aggregate the total grossincome for these six business lines using a beta of 18%.

As under the Standardized Approach, the total capital charge for the ASA is calculated as the simple summation of the regulatory capital charges across each of the eight business lines.

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3. Advanced Measurement Approaches (AMA)

Under the AMA, the regulatory capital requirement will equal the risk measuregenerated by the bank’s internal operational risk measurement system quantitative and qualitative criteria. Use of the AMA is subject to supervisory approval.

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Quantitative Standards

AMA soundness standardGiven the continuing evolution of analytical approaches for operational risk,

the Committee is not specifying the approach or distributional assumptions usedto generate the operational risk measure for regulatory capital purposes. However, a bank must be able to demonstrate that its approach captures potentially severe ‘tail’ loss events. Whatever approach is used, a bank must demonstrate that its operational risk measure meets a soundness standard comparable to that of the internal ratings-based approach for credit risk, (i.e., comparable to a one year holding period and a 99.9th percentile confidence interval)

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Quantitative Standards cont’d…….

The Committee recognizes that the AMA soundness standard provides significant flexibility to banks in the development of an operational risk measurement and management system. However, in the development of thesesystems, banks must have and maintain rigorous procedures for operational riskmodel development and independent model validation. Prior to implementation, the Committee will review evolving industry practices regarding credible and consistent estimates of potential operational losses.It will also review accumulated data, and the level of capital requirements estimated by the AMA, and may refine its proposals if appropriate.

Any internal operational risk measurement system must be consistent with the scope of operational risk defined by the Committee.

Supervisors will require the bank to calculated its regulatory capital requirements as the sum of expected loss (EL) and unexpected loss (UL), unless the bank can demonstrate that it is adequately capturing EL in its internal business practices.

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Event-Type Category (Level 1)

Definition Categories

(Level 2)

Activity Examples (Level 3)

Internal fraud Losses due to acts of a type intended to defraud misappropriate property or circumvent regulations, the law or company policy, excluding diversity/discrimination events, which involves at least one internal party

Unauthorized Activity

Theft and Fraud

Transactions not reported (intentional)

Transaction type unauthorized (w/monetary loss)

Mismarking of position (intentional)

Fraud/credit fraud/worthless deposits

Theft/extortion/embezzlement/robbery

Misappropriation of assets

Malicious destruction of assets

Forgery

Check kiting

Smuggling

Account take-over/impersonation/etc

Tax non-compliance/evasion (wilful)

Bribes/kickbacks

Insider trading (not on firm’s account)

External fraud Losses due to acts of a type intended to defraud, misappropriate property or circumvent the law, by a third party

Theft and Fraud

System Security

Theft/Robbery

Forgery

Check kiting

Hacking damage

Theft of information (w/monetary loss)

AMA Detailed Loss Event Type Classification

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Detailed Loss Event cont’d…….

Employment Practices and Workplace Safety

Losses arising from acts inconsistent with employment, health or safety laws or agreements, from payment of personal injury claims, or from diversity/discrimination events

Employee Relations

Safe Environment

Diversity & Discrimination

Compensation, benefit, termination issues

Organized labour activity

General liability (slip and fall, etc)

Employee health & safety rules events

Workers Compensation

All discrimination types

Clients, Products & Business Practices

Losses arising from an unintentional or negligent failure to meet a professional obligation to specific clients (including fiduciary and suitability requirements), or from the nature or design of a product

Suitability, Disclosure & Fiduciary

Fiduciary breaches/ guideline violations

Suitability/disclosure issues (KYC, etc)

Retail customer disclosure violations

Breach of privacy

Aggressive sales

Account churning

Misuse of confidential information

Lender liability

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Event-Type Category (Level 1)

Definition Categories

(Level 2)

Activity Examples (Level 3)

Improper Bus or Mkt Practices

Product flaws

Selection, Sponsorship & Exposure

Advisory Activities

Antitrust

Improper trade/market practices

Market manipulation

Insider Trading (on firm’s account)

Unlicensed activity

Money Laundering

Product defects (unauthorized, etc)

Model errors

Failure to investigate client per guidelinesExceeding client exposure limits

Disputes over performance of advisory activities

Damage to Physical Assets

Losses arising form loss or damage to physical assets from natural disaster or other events

Disasters and other events

Natural disaster losses

Human losses form external sources (terrorism, vandalism)

Business disruption and system failures

Losses arising from disruption of business or system failures

Systems Hardware

Software

Telecommunications

Utility outage/disruptions

Detailed Loss Event cont’d…….

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Execution, Delivery & Process Management

Losses from failed transaction processing or process management, from relations with trade counterparties and vendors

Transaction Capture, Execution & Maintenance

Monitoring & Reporting

Customer Intake & Documentation

Customer/Client Account Management

Trade Counterparties

Vendors & Suppliers

Miscommunication

Data entry, maintenance or loading error

Missed deadline or responsibility

Model/system misoperation

Accounting error/entity attribution error

Other task misperformance

Delivery failure

Collateral management failure

Reference Data Maintenance

Failed mandatory reporting obligation

Inaccurate external report (loss incurred)

Client permissions/disclaimers missing

Legal doc. missing/incomplete

Unapproved access given to accts.

Incorrect client records (loss incurred)

Negligent loss or damage of client assets

Non-client counterparty misperformance

Misc non-client counterparty disputes

OutsourcingVendor disputes

Detailed Loss Event cont’d………

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Data Sources

Internal dataInternally generated operational risk measures used for regulatory capital

purposes must be based on a minimum five-year observation period of internalloss data, whether the internal loss data is used directly to build the loss measureor to validate it. When the bank first moves to the AMA, a three-year historical data window is acceptable.

External dataA bank’s operational risk measurement system must use relevant external

data (either public data and/or pooled industry data), especially when there is reason to believe that the bank is exposed to infrequent, yet potentially severe, losses. These external data should include data on actual loss amounts, information on the scale of business operations where the event occurred, information on the causes and circumstances of the loss events.

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Scenario analysisA bank must use scenario analysis of expert opinion in conjunction with

external data to evaluate its exposure to high-severity events. This approach draws on the knowledge of experienced business managers and risk management experts to derive reasoned assessments of plausible severe loses.For instance, these expert assessments could be expressed as parameters of an assumed statistical loss distribution. In addition, scenario analysis should be used to assess the impact of deviations from the correlation assumptions embedded in the bank’s operational risk measurement framework, in particular, to evaluate potential losses arising from multiple simultaneous operational risk loss events. Over time, such assessments need to be validated and re-assessed through comparison to actual loss experience to ensure their reasonableness.

Risk mitigationUnder the AMA, a bank will be allowed to recognize the risk mitigating

impact of insurance in the measures of operational risk used for regulatory minimum capital requirements. The recognition of insurance mitigation will be limited to 20% of the total operational risk capital charge calculated under the AMA

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A bank’s ability to take advantage of such risk mitigation will depend on compliance with the following criteria:

• The insurance provider has a minimum claims paying ability rating of A (or equivalent).

• The insurance policy must have an initial term of no less than one year. For policies with a residual term of less than one year, the bank must make appropriate haircuts reflecting the declining residual term of the policy, up to a full 100% haircut for policies with a residual term of 90 days or less.

• The insurance policy has a minimum notice period for cancellation of 90 days.

• The insurance policy has no exclusions or limitations triggered by supervisory actions or, in the case of a failed bank, that preclude the bank, receiver or liquidator from recovering for damages suffered or expenses incurred by the bank, except in respect of events occurring after the initiation of receivership or liquidation proceedings in respect of the bank, provided that the insurance policy may exclude any fine, penalty, or punitive damages resulting form supervisory actions.

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• The risk mitigation calculations must reflect the bank’s insurance coverage in a manner that is transparent in its relationship to, and consistent with, the actual likelihood and impact of loss used in the bank’s overall determination of its operational risk capital.

• The insurance is provided by a third-party entity. In the case of insurance through captives and affiliates, the exposure has to be laid off to an independent third-party entity, for example through re-insurance, that meets the eligibility criteria.

• The framework for recognizing insurance is well reasoned and documented.

• The bank discloses a description of its use of insurance for the purpose of mitigating operational risk.

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The Second Pillar – Supervisory Review Process

There are three main areas that might be particularly suited to treatment under Pillar 2: risks considered under Pillar 1 that are not fully captured by the Pillar 1 process (e.g., credit concentration risk); those factors not taken into account by the Pillar 1 process (e.g., bank (e.g., business cycle effects). A further important aspect of Pillar 2 is the assessment of compliance with the minimum standards and disclosure requirements of the more advanced methods in Pillar 1, in particular the IRB framework for credit risk and the Advanced Measurement Approaches for operational risk. Supervisors must endure that these requirements are being met, both as qualifying criteria and on a continuing basis.

Four Key Principles of Supervisory Review

Principle 1: Banks should have a process for assessing their overall capital adequacy in relation to their risk profile and strategy for maintaining their capitallevels.

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The five main features of a rigorous process are as follows:

• Board and senior management oversight;

• Sound capital assessment;

• Comprehensive assessment of risks;

• Monitoring and reporting; and

• Internal control review

Principle 2: Supervisors should review and evaluate banks’ internal capitaladequacy assessments and strategies, as well as their ability to monitor andensure their compliance with regulatory capital ratios. Supervisors should takeappropriate supervisory action if they are not satisfied with the result of this process.

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The supervisory authorities should regularly review the process by which a bankassesses its capital adequacy, risk position, resulting capital levels, and quality of capital held. Supervisors should also evaluate the degree to which a bank has in place a sound internal process to assess capital adequacy. The emphasis of the review should be on the quality of the bank’s risk management and controls and should not result in supervisors functioning as bank management.

Principle 3: Supervisors should expect banks to operate above the minimum regulatory capital ratios and should have the ability to require banks to hold capital in excess of the minimum.

Principle 4: Supervisors should seek to intervene at an early stage to prevent capital from falling below the minimum levels required to support the risk characteristics of a particular bank and should require rapid remedial action if capital is not maintained or restored.

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Specific issues to be addressed under the supervisor review process

Interest rate risk in the banking bookThe revised guidance on interest rate risk recognizes banks’ internal

systems as the principal tool for the measurement of interest rate risk in the banking book and the supervisory response. To facilitate supervisors’ monitoring of interest rate risk exposures across institutions, banks would haveto provide the results of their internal measurement systems, expressed in terms of economic value relative to capital, using a standardized interest rate shock.

Credit concentration riskCredit risk concentrations, by their nature, are based on common or

correlated risk factors, which, in times of stress, have an adverse effect on thecreditworthiness of each of the individual counterparties making up theconcentration. Such concentrations are not addressed in the Pillar 1 capitalcharge for credit risk.

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Banks should have in place effective internal policies, systems and controls to identify, measure, monitor, and control their credit risk concentrations. Banks should explicitly consider the extent of their credit risk concentrations in their assessment of capital adequacy under Pillar 2. These policies should cover the different forms credit risk concentrations to which a bank may be exposed. Such concentrations include:

• Significant exposures to an individual counterparty or group of related counterparties. In many jurisdictions, supervisors define a limit of exposures of this nature, commonly referred to as a large exposure limit. Banks might also establish an aggregate limit for the management and control of all of its large exposures as a group;

• Credit exposures to counterparties in the same economic sector or geographic region;

• Credit exposures to counterparties whose financial performance is department on the same activity or commodity; and

• Indirect credit exposures form a bank’s CRM activities (e.g., exposure to a single collateral type or to credit protection provided by a single counterparty).

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The Third Pillar – Market Discipline

Guiding principlesThe purpose of Pillar 3 – market discipline is to complement the minimum

capital requirements (Pillar 1) and the supervisory review process (Pillar 2). TheCommittee aims to encourage market discipline by developing a set of disclosure requirements which will allow market participants to assess key pieces of information on the scope of application, capital, risk exposures, risk assessment processes, and hence the capital adequacy of the institution. The Committee believes that such disclosures have particular relevance under the Framework, where reliance on internal methodologies gives banks more discretion in assessing capital requirements

FrequencyThe disclosures set out in Pillar 3 should be made on a semi-annual basis

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Qualitative disclosures (a) A summary discussion of the bank’s approach to assessing the adequacy of its capital to support current and future activities.

Quantitative disclosures (b) Capital requirements for credit risk:

• Portfolios subject to standardized or simplified standardized approach,

disclosed separately for each portfolio;

• Portfolios subject to the IRB approaches, disclosed separately for each

portfolio under the foundation IRB approach and for each portfolio under

the advanced IRB approach:

• Corporate (including SL not subject to supervisory slotting criteria),

sovereign and bank;

• Residential mortgage;

• Qualifying revolving retail; and

• Other retail;

• Securitization exposures

(c) Capital requirements for equity exposures in the IRB approach:• Equity portfolios subject to the market-based approaches

• Equity portfolios subject to simple risk weight method; and

• Equities in the banking book under the internal models approach (for

banks using IMA for banking book equity exposures).

• Equity portfolios subject to PD/LGD approaches.

Capital Adequacy

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(d) Capital requirements for market risk

• Standardized approach;

• Internal models approach – Trading book.

(e) Capital requirements for operational risk:

• Basic indicator approach;

• Standardized approach;

• Advanced measurement approach (AMA).

(f) Total and Tier 1 capital ratio:

• For the top consolidated group; and

• For significant bank subsidiaries (stand alone or sub-consolidated

depending on how the Framework is applied).

Capital Adequacy Cont’d…..

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Operational Risk

Qualitative disclosures

(a)

(b)

In addition to the general qualitative disclosure requirement, the approach(es) for operational risk capital assessment for which the bank qualifies.

Description of the AMA, if used by the bank, including a discussion of relevant internal and external factors considered in the bank’s measurement approach. In the case of partial use, the scope and coverage of the different approaches used.

(c) For banks using the AMA, a description of the use of insurance for the purpose of mitigating operational risk.