Title: Capital%20Adequacy
1Capital Adequacy
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2Agenda
3Agenda
4 Function of capital
- To absorb unanticipated losses with enough margin
to inspire confidence and enable the FI to
continue as a going concern - To protect uninsured depositors, bondholders, and
creditors in the event of insolvency and
liquidation - To protect FI insurance funds and taxpayers
- To protect the FI owners against increase in
insurance premiums - To fund the branch and other real investments
necessary to provide financial services
5 Capital
- Economists definition
- Capital (net worth) market value of assets
market - value of liabilities
- Accountants defined
- Capital book value of assets market value of
- liabilities
Market value accounting
Book value accounting
6TABLE 20-2 Assets
Liabilities
(in millions of dollars) Long-term securities
80 Liabilities
90Long-term
loans 12
Net worth
2
92
921. The loss of
asset value is charged against the equity owners
capital or net worth2. The liability
holders (depositors) are fully protected in that
the total market value of their claims is
still 903. Because debt holders legally are
senior claimants and equity holders are junior
claimants to an FIs assets
credit risk effect on market value
- TABLE 20-1
- Assets
Liabilities (in millions of
dollars) - Long-term securities 80
Liabilities
90 - Long-term loans
20 Net worth
10 -
100
100
7Interest risk effect on market value
- TABLE 20-1
- Assets
Liabilities (in millions of
dollars) - Long-term securities 80
Liabilities (short-term ,floating-
90 -
rate deposits) - Long-term loans
20 Net worth
10 -
100
100 - Table 20-24
- Assets
Liabilities - Long-term securities 75
Liabilities (short-term ,floating-
90 -
rate deposits) - Long-term loans
17 Net worth
2
-
92
92 - Rising interest rates reduce the market value of
the FIs long-term fixed-income securities and
loans - Because all deposit liabilities are assumed to be
short-term floating-rate deposits, their market
values are unchanged at 90 - the net worth loss from 10 to 2
- Only if the fall in market value of assets
exceeds 10 are the liability holders adversely
affected
8conclusion
- Market valuation of their balance sheet produces
an economically accurate picture of the net worth - As long as the owners capital or equity stake is
adequate ,or sufficiently large, liability
holders are protected against insolvency risk - If an FI were closed by regulators before its
economic net worth became zero ,neither liability
holders nor those regulators guaranteeing the
claims of liability holders would stand to lose
9The book value of capital
- The book value of capital usually comprises the
following - four components
- Par value of shares
- Surplus value of shares
- Retained earnings
- Loan loss reserve
10 the book value of capital and credit risk
- TABLE 20-5
- Assets
Liabilities - Long-term securities 80
Liabilities
90 - Long-term loans 20
Net worth
10 -
100
100 - TABLE20-6
- Assets
Liabilities - Long-term securities 80
Liabilities
90 - Long-term loans 17
Net worth
7 -
97
97 - FIs have greater discretion in reflection or
timing problem loan loss - recognition on their balance sheets
- Try to present a more favorable picture to
depositors and regulators - Only pressure from regulators such as bank,
thrift, or insurance examiners may force loss
recognition and write downs in the values of
problem assets
11the book value of capital and interest rate risk
- TABLE 20-5
- Assets
Liabilities - Long-term securities
80 Liabilities
90 - Long-term loans
20 Net worth
10
-
100
100 - Assets
Liabilities - Long-term securities
80 Liabilities
90 - Long-term loans
20 Net worth
10
-
100
100 - The rise in interest rates has no effect on the
value of assets ,liabilities, or the book value
of equity, the balance sheet remains unchanged
12Arguments against market value accounting
- Against (market value)
support (market value) - 1. It is difficult to implement
1. error resulting from the use of
-
market valuation is less
serious - 2. It introduces an unnecessary 2.
FIs are increasingly trading, selling, - degree of variability into an FIs
and securitizing assets rather than - earnings , especially they hold
holding them to maturity - loans and other assets to maturity
- 3. FIs are less willing to accept longer-
- term asset exposures
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14Agenda
15 Background
1980??,???? ???????,?? ???????
1988?7???? BIS????? ????????? ?1988??????
G10????
???? ???????
???????
2001?1?16? ??????? ??????2006 ??????
1996?1? ????????? ????????
?????????
16Basel I ???
- 1.?????????
- 2.????????,???????
- 3.???????
- 4.???????
- 5.????????
- 6.???????
17(No Transcript)
18Agenda
19Capital-Assets Ratio (Leverage Ratio)
- LCore Capital /Total Assets
-
- Core Capital
- common equity(book value)
- qualifying cumulative perpetual preferred stock
- minority interests in equity accounts of
consolidated subsidiaries
20Specifications of Capital Categories for PCA
Receivership is mandatory
Prompt Correction Action must be taken if a bank
falls outside zone1
21PCA of FDICIA of 1991
22PCA of FDICIA of 1991
23Problems of using Leverage Ratio as a measure
of capital adequacy
- Market Value 2 book leverage ratio could be
consistent with a massive negative market value
net worth - Asset Risk fails to take into account the
different credit, interest rate and other risks
of the assets that comprise total assets - Off-Balance-Sheet activities
24Pillar I
- Minimum Capital Requirement In the Commercial
Banking and Thrift Industry
25Minimum capital requirement
- There are no change in market risk computation
from Basel I to Basel II. - Methods in measuring credit risk
operational risk
Credit risk Operational risk
Standardized Approach Basic Indicator Approach
Foundation IRB Approach Standardized Approach
Advanced IRB Approach Advanced Measurement Approach
26Standardized IRB Approach
- Standardized Approach
- Basel I Fixed Risk weight is given according
to the counterparty - Basel II Fixed Risk weight is corresponding to
each supervisory category and make use of
external credit assessments( OECD export
agencies, private rating agencies, eg Standard
Poors ). -
- IRB
Approach - IRB approach substantially differs from the
standardized approach in that banks internal
assessments of key risk drivers serve as primary
inputs to the capital calculation. -
-
IRB Approach is more risk-sensitive ,but with
much higher development cost.
27Credit RiskStandardized Approach
28Risk-Based Capital Ratios
- Total risk-based capital ratio
- Total Capital(Tier I Tier II Tier
III-Deduction) - Credit risk-adjusted assets
- Tier I (Core) capital ratio
- Core Capital(Tier I)
- Credit risk-adjusted assets
?
8
?
4
It has been argued that capital requirement may
induce higher not lesser risk.
29PCA of Banking Industry in Taiwan
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30PCA of Thrift Industry in Taiwan
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31Credit Risk?Calculating Capital
- Tier I capital- primary or core capital
- linked to a banks book value of equity
reflecting the concept of the core capital
contribution of a banks owners. - Tier II capital- supplementary capital
- broad array of secondary capital resources
- Tier III capital- to support market risk
32Credit Risk?Calculating Capital
33Credit Risk?Calculating Capital
Data source for Tier IIIOver View Of The
Amendment To The Capital Accord To Incorporate
Market Risk January 1996
34Example
35 The Calculation of Credit-Risk Based
Capital
- On-Balance-Sheet Assets
- Off-Balance-Sheet Activities
Guaranty Type Contingent contracts
Derivative or Market Contracts
36Credit Risk?Calculating Credit Risk-Adjusted
On-Balance-Sheet Assets
- The risk-adjusted value of the banks on- balance
sheet assets(under Basel I) would be - WiAi
- where
- Wi Risk Weight of the ith asset
- Ai Dollar(book)Value of the ith asset on
the balance sheet
S
37 Risk Categories of On-Balance-Sheet Items Under
Basel I
38Example
39Example
- Credit risk-adjusted on-balance-sheet assets
- 0(8m13m60m5042m)
- 0.2(10m10m20m)
- 0.5(34m308m)
- 1.0(10m55m75m390m10m108m22m)
- 849m
-
-
40Risk Categories of On-Balance-Sheet Items Under
Basel II
41Risk Categories of On-Balance-Sheet Items Under
Basel II
42Risk Categories of On-Balance-Sheet Items Under
Basel II
Data source Consultative Document of The New
Basel Capital Accord July,31 2003
43Example
44Example
- Credit risk-adjusted on-balance-sheet assets
- 0(8m13m60m5042m)
- 0.2(10m10m20m10m55m)
- 0.5(34m308m75m)
- 1.0(390m108m22m)
- 1.510m
- 764.5m
45Credit Risk?Calculating Credit Risk-Adjusted
Off-Balance-Sheet Assets
- Off-Balance Sheet items was divided into two
types? - Guaranty type contracts
- vs.
- Derivative or market contracts
-
- Credit risk-adjusted assets of OBS Guaranty
Contracts - Credit Equivalent AmountRisk Weight
- (OBS activity i Conversion factorRisk
weight) -
S
S
46Example
47Example
48Example
Under Basel I , the appropriate risk weight in
each case depends on the underlying counterparty
to the OBS activity such as a municipality, a
government, or a corporation.
Under Basel, risk weight treatment is the same
as on-balance-sheet items..
49Credit Risk?Calculating Credit Risk-Adjusted
Off-Balance-Sheet Assets
- The credit or default risk of exchange-traded
derivatives is approximately zero because when a
counterparty defaults on its obligations,the
exchange itself adopts the counterpartys
obligations in full. -
- Credit risk-adjusted assets of
- OBS Market Contracts
- Credit Equivalent Amount Risk Weight
- ( Potential ExposureCurrent Exposure )Risk
Weight
50Credit Risk?Calculating Credit Risk-Adjusted
Off-Balance-Sheet Assets
- The potential exposure component reflects the
credit risk if the counterparty to the contract
defaults in the future. - The current exposure reflects the cost of
replacing a contract if the counterparty defaults
today. - The bank calculates this replacement cost or
current exposure by replacing the rate or price
initially in the contract with the current price
or rate for a similar contract and recalculates
all the current and future cash flows that would
have been generated under current rate or prices.
51Credit Risk?Calculating Credit Risk-Adjusted
Off-Balance-Sheet Assets
- If replacement cost is positive,the current
exposure equals replacement cost. - If replacement cost is negative,the current
exposure is set to be 0.
52Example
FX were far more volatile than interest rate.
Conversion Factor
Credit Equivalent Amount
Gross Potential Exposure
Net Current Exposure
Gross Current Exposure
53Example
Under Basel I,counterparties to these contracts
are assumed to be low credit risk entities.
Basel II assigns these Contracts a risk
weight of 100.
54Calculating Risk-Based Capital Ratio
55Netting
- BIS allows netting of off-Balance-Sheet
derivative contracts as long as the bank has a
bilateral netting contract that clearly
establishes a legal obligation by the
counterparty to pay or receive a single net
amount on the different contracts. - Credit equivalent amount
- Net Potential ExposureNet Current Exposure
- Net Current ExposureSum of all replacement cost
- Net Potential Exposure(0.4Gross potential
exposure)(0.6NGRGross potential exposure) - NGRThe ratio of net current exposure to gross
current exposure
56Example
- Following the preceding example
- Net Current Exposure3m-1m2m
- Gross Current Exposure3m0m3m
- Gross Potential Exposure0.5m2m2.5m
- NGR 2/3
- Net Potential Exposure
- (0.42.5m)(0.62/32.5m)2m
- Credit equivalent amount
- 2m2m4m
57Calculating Risk-Based Capital Ratio After Netting
58Basel II ???????????????????
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59Basel II ???????????????????
60Basel II ???????????????????
????? ????
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61Basel II ???????????????????
- ????
- Basel I ??????????????100 Basel
II?????????????,?????????????????????????,????????
?????????26???????,???????????????????,??????(Mapp
ing process)???????????????2?? - ?Basel II??????BBB????????100,??????????,???????
????16??
62Basel II ???????????????????
63Basel II ???????????????????
- ???????????????????????????,???????????????????6-7
?,??????????0.36,???3.19? - ????????????????????????,??????????0.08,???0.75?
64Basel II ???????????????????
- ????
- ?SP ??????????????????,????7??????????,???????
????,??????,????2?????????B-?????,?????150,??????
???????0.07,???0.66?
65Basel II ???????????????????
- ????
- ??9?????????????,??????Basel I?Basel
II?????????100,?Basel II?????????????????150,???
??????????????0.14,????-1.62,??????????????????
66Basel II ???????????????????
- ???????????
- ?Basel II?????????????????????,??????????????????
????????????? - ??????????????,?????????0.004,???0.05,??????????
???
67Basel II ???????????????????
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?????????????????????????????,???????????????0.02
,???0.06 ,?????
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69Agenda
70Criticisms of the Risk-Based Capital Ratio
- Risk weights
- Risk weights based on external credit rating
agencies - Portfolio aspects
- DI specialness
- Other risks
- Competition
71Internal Ratings-Based Approach
- Banks that qualify for the IRB approach may rely
on their own internal estimates of risk
components in determining the capital requirement
for a given exposure. - Advantages
- Effective credit risk management
- Potential cost reduction
- Two approach
- Foundation Approach
- Advanced Approach
72Trend of Capital Adequacy
IRB Advanced Approach
IRB Foundation Approach
Standardized Approach
73Internal Ratings-Based Approach
- Minimum
- requirements for
- IRB approach
- Classification of
- exposures
74Minimum requirements for IRB approach
- (a) Composition of minimum requirements
- (b) Compliance with minimum requirements
- (c) Rating system design
- (d) Risk rating system operations
- (e) Corporate governance and oversight
- (f) Use of internal ratings
- (g) Risk quantification
- (h) Validation of internal estimates
- (i) Supervisory LGD and EAD estimates
- (j) Calculation of capital charges for equity
exposures - (k) Disclosure requirements
75Classification of exposures
76Risk components
- PD probability of default
- EAD the exposure at default
77 Risk Components Estimates - Corporate
Foundation Approach
Advanced Approach
PD
- One-year default probability based on historical
experience or credit scoring model - 0.03
LGD
- Senior claims ? 45
- Subordinated claims ? 75
- Secured by collateral
- Banks rely on own estimates
EAD
- EAD CCF primitive amount (CCF credit
conversion factor)
- Follow the standardized
- approach and adjust by
- regulation
- Banks use their own internal estimates of CCFs
M
- Repo-style transaction
- ?M 6 month
- Others ? M 2.5 year
- Required to measure for each facility by
regulation
78Risk weight functions
- EAD PD LGD ??????
- ?????????
- Capital / Risk Asset 8
- Risk Asset ????????? / 8
no default
EAD
reclaimed
default
PD
loss
LGD
Risk-weighted assets EAD PD LGD/8????
79Risk weight functions for Corporate , Sovereign ,
Bank
- Correlation (R)
- 0.24- 0.12 (1-e (-50 PD) ) / (1-e (-50 )
) - Maturity adjustment (b)
- (0.08451 . 0.05898 log (PD))2
- Capital requirement (K)
- LGDN (1 R)- 0.5 G ( PD ) (R / (1 -
R))0.5 G (0.999) - (1- 1.5 b)-1 (1 (M - 2.5) b )
- Risk-weighted assets (RWA) EAD K 8
80Risk weight functions for Corporate - Adjustment
- For small- or medium-sized entities (SME)
- Firms reported sales is less than 50 million
- Correlation (R)
- 0.24- 0.12 (1-e (-50 PD) ) / (1-e (-50
PD) ) - 0.04 (1- (S-5)/45)
- S sales (million )
81Risk weight functions for retail
a. Residential mortgage b. Qualifying revolving
retail c. Others
- R
- a. 0.15
- b. 0.11- 0.09 (1-e (-50 PD) ) / (1-e (-50 )
) - c. 0.17- 0.15 (1-e (-35 PD) ) / (1-e (-35 )
) - K
- a?c. LGDN (1 R)- 0.5 G ( PD ) (R / (1 -
R))0.5 G (0.999) - b. LGD N (1 R)- 0.5 G ( PD ) (R / (1 -
R))0.5 G (0.999) 0.75PD - RWA EAD K 8
82Risk weighted functions for equity exposures
- Market-Based approach
- PD/LGD approach.
83Internal Ratings-Based Approach
84?? IRB ???
1.????????????????
2.????????
3.????????
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4.????????
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6.????????
5.??????????
????????????
85Market Risk and Risk-Based Capital
- The standardized model proposed by regulators
- The DIs own internal market risk model
Operational Risk and Risk-Based Capital
- The Basic Indicator Approach
- The Standardized Approach
- The Advanced Measurement Approach
86Minimum Capital Requirement
Capital Credit
Risk Asset ( Market Risk OpRisk ) 12.5
8
87Agenda
88Capital Requirements for Other FIs
- Securities Firms
- Life Insurance
- Property-Casualty Insurance
89Securities Firms
- The capital requirements for broker-dealers set
by the SECs Rule 15C 3-1 in 1975 are close to a
market value accounting rule - Broker , dealers must calculate a market value
for net worth on a day-to-day basis and ensure
that their net worth-assets ratio exceeds 2
percent
90Securities Firms
- Net worth A Book value L Book value
- Deduction
- Assets such as fixed assets not really
convertible into cash - Securities that cannot be publicly offered
- or sold
- Haircuts reflecting potential market value
fluctuations in assets - ex haircut on illiquid equities 40
- debt securities 09
91????????????
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92????????????
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93???????????
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94???????????
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100 75 8? 7?
75 50 7? 6?
50 25 6? 5?
25 0 5? 4?
lt 0 4? 3?
98Life Insurance
- In 1993 the life insurance industry adopted a
model Risk-Based Capital (RBC) scheme recommended
by NAIC ( National Association of Insurance
Commissioners ) - Identifying four risks faced by the life insurer
- C1 Asset risk
- C2 Insurance risk
- C3 Interest rate risk
- C4 Business risk
- If A and B are perfectly independent ( ? 0)
- s(AB) ( sA2 sB2 ) 1/2
- If A and B are perfectly correlated ( ? 1)
- s(AB) ( sA2 sB2 2 sA sB ) 1/2 ((sA
sB )2 ) 1/2 - sA sB
99Life Insurance
- RBC ( C1C3 )2 C22 C4
- Total surplus and capital
- RBC
1
100Property-Casualty Insurance
- Similar to the life insurance industrys RBC
introduced by the NAIC - Except that there are six risk categories ,
including three separate asset risk categories
101Property-Casualty Insurance
Risk Type Description
R0 Asset RBC for investments( common and preferred ) in property-casualty affiliates
R1 Asset RBC for fixed income
R2 Asset RBC for equity-includes common and preferred stock ( other than in property-casualty affiliates) and real estate
R3 Credit RBC for reinsurance recoverables and other receivables
R4 Underwriting RBC for loss and loss (LAE) adjustment expense reserves plus growth surcharges
R5 Underwriting RBC for written premiums plus growth surcharges
102Property-Casualty Insurance
- RBC R0 R12 R22 R32 R42 R52
- Total surplus and capital
- RBC
100
103Risk-Based Capital Factors for Selected Assets
Asset Life Property-Casualty
Bonds
U.S. government 0.0 0.0
NAIC 1 AAA-A 0.3 0.3
NAIC 2 BBB 1.0 1.0
NAIC 3 BB 4.0 2.0
NAIC 4 B 9.0 4.5
NAIC 5 CCC 20.0 10.0
NAIC 6 In or near default 30.0 30.0
Residential mortgages ( whole loans ) 0.5 5.0
Commercial mortgages 3.0 5.0
Common stock 30.0 15.0
Preferred stock-bond factor for same NAIC category plus 2.0 2.0
104????????????
- 90.7.9?????????,???143??4,?????????????????????200
,????????? - 90.12.20??????????????? ????92.7.9???
- 92.6.30????????????????????,??????????????????????
??????????????(??????????????)
105?????
- C0????--?????
- C1????--??????
- C1O????????
- C1S ????????
- C2????
- C3????
- C4????
- ??????
- 0.4 (C0 C4v(C10C3)2C1S2C22 )
200
106????????????
107?????
- R0 ????--?????
- R1????--??????
- R1O ????????
- R1S ????????
- R2 ????
- R3a????--?????????
- R3b????--??
- R4 ????????
- R5 ????
- ??????
- 0.4 (R0 R5v(R10R4)2 R1S2 R22 R3a2
R3b2 ) - 200
108????????????
109Agenda
110Pillar II
- Supervisory Review of Capital Adequacy
- ????????
- ????????
- ????????
111Pillar IIsupervisory review process
- ????????
- ????????????,????????????????,???????????
-
- ????
- 1. ???????????
- 2. ?????????
- 3. ???????
- 4. ??????????
- 5. ???????
???? ?????????????????????
112Pillar II supervisory review process
- ????????????????????????????,????????????????????
???????,???????????,?????????? - ??????
- 1. ???????
- 2. ????
- 3. ???????????
- 4. ?????????(????????)
- 5. ??????????
- ??????
- 1. ?????????
- 2. ????????
- 3. ?????????
- 4. ???????????
113Pillar II supervisory review process
- ????????????????????????????,??????????????????
- ????
- 1. ???????????????
- 2. ????????????????????-??
- ?????????
- 3. ??????????????????
114Pillar II supervisory review process
- ????????????,?????????????????????????,??????????
??????,????????? - ????
- 1. ????????
- 2. ???????????,???????
- 3. ??????????????????????
- 4. ????????????????
- 5. ????????????????
- 6. ???????????????
- 7. ??????????
- 8. ??????????????
115Pillar II supervisory review process
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116??????
Basel II
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SUORCE??????
117??????
- Basel II ??????????
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???????? -
3. ??????????Basel 2 -
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SUORCE??????
118Pillar III
119Pillar III-Market discipline
- Basel ????????????????????????
- 1. ???????????????????????????
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- ?????
-
- 2. ?????????????????????
- ?,????????????????????
- ??
- 3. ???????????????????????????
- ??
- 4. ??????????
120?Basel II ???
- ?????????????,??????
- PD??????
- ???????????
- ????????????????
- ?????????????
- ?????PD????????,???????????,???????
- ??????PD?,????????????????
- ????????
121- Thanks for your attention