via emailWASHINGTON
MUTUAL
November 3, 2003
Public
Information Room
Office of
the Comptroller of the Currency
2520 E Street, SW
Mailstop 1-5
Washington, D.C. 20219
|
Robert E. Feldman
Executive Secretary
Federal Deposit Insurance Corporation
550 17th Street, N.W.
Washington, D.C. 20429
Attention: Comments/OES |
Ms. Jennifer J. Johnson, Secretary
Board of Governors of the Federal Reserve
System
20th Street and Constitution Ave, NW
Washington, D.C. 20551 |
Regulation Comments
Chief Counsel's Office
Office of Thrift Supervision
1700 G. Street, N.W.
Washington, DC 20522 |
Re:
Re: Risk-Based Capital Guidelines; Implementation of New Basel
Capital Accord 68 FR 45900 (August 4, 2003)
Table of Contents
1. Introduction
...........................................................................................
3
1.1 Integrate Into Broader Framework of U.S. Capital
Regulation..................... 4
2. Additional Problems That Must Be Fixed Before
Proceeding....................... 8
2.1 Timing and Clarity of
Explanations.......................................................... 8
2.2 Simplified Approach for Non-AIRB
Portfolios/Materiality.............................9
2.3 Multi-Family Lending
............................................................................10
2.4 Through-the-Cycle LGD
........................................................................12
2.5 Operational Risk Should be Moved to Pillar Two
.....................................13
3. Other Issues: Excessive Cumulative Conservatism in AIRB
.......................14
3.1 Treatment of Expected Losses
............................................................. 15
3.2 Arbitrary SFR LGD Floor of 10%
............................................................15
3.3 Arbitrary PD floor of 3 Basis Points
........................................................15
3.4 Single Family Residential Mortgage Asset Value
Correlations....................16
3.5 HELOC and HELoan Categorization/Asset Value Correlations
...................16
3.6 Default Definitions Overly Complex
..........................................................16
3.7 Commercial Real
Estate.........................................................................
18
4. Other Issues:
Securitization.......................................................................19
5. Other Issues: Operational Risk / AMA
Approach......................................... 19
5.1 Operational Risk Expected Loss Not
Capitalized....................................... 19
5.2 Credit vs. Operational Loss
Distinction...................................................... 19
5.3 Operational Loss Reconciliation with GL at Event
Level............................... 20
5.4 Operational Risk Mitigation Limited to Arbitrary 20% of Capital
....................20
Ladies and Gentlemen:
Washington Mutual Inc. (“WaMu”) is the 7th largest bank in the
country. We provide both wholesale and retail banking services. Almost
one-half of our assets consist of residential mortgage related credits.
We are also the single largest servicer of mortgages in the U.S. We
greatly appreciate the opportunity to provide our comments with respect
to the U.S. Agencies’ Advance Notice of Proposed Rulemaking (“ANPR”)
which follows the proposals dealing with so-called Advanced Internal
Rating-Based (“AIRB”) banks in the new Basel Capital Accord.
1. Introduction
We have previously commented on the Basel Committee’s prior
proposals. We continue to support the objectives of the new Basel
Capital Accord as we understand them -- to improve the risk sensitivity
of the regulatory capital framework and to encourage the development of
best practice risk measurement and management practices. Appropriately
modified, fairly implemented, and properly integrated into the broader
framework of capital regulation, Basel II will stand as one of the
lynchpins in the modernization of banking and bank regulation.
Accordingly, we welcome its application to WaMu as a “core bank.” At the
same time, significant shortcomings remain in Basel II, as reflected in
the ANPR, that will severely undermine, if not compromise entirely, its
efficacy. Moreover, meeting the goals of Basel II demands broader
changes in the U.S. framework of capital regulation than are
contemplated in the ANPR. Despite the significance of our concerns, we
believe that they can be addressed in a manner consistent with the
expeditious implementation of Basel II. However, failure to address them
will, in our judgment, result in further delay and call into serious
question the wisdom of the approach.
First, and perhaps most importantly from our perspective, we believe
that Basel II should not go forward apart from a reconsideration of the
framework of capital regulation. A risk-based capital test is but one
component of the U.S. framework, which includes the leverage test and a
‘well-capitalized’ standard that permeates the framework. Moreover,
because the framework influences managerial decisions and competitive
conduct, the U.S. should implement, as the rest of the world apparently
intends, a regime of general applicability to all banking institutions.
We understand that the Agencies have determined not to address these
issues in the short-run because of resource constraints and concern that
addressing them will delay implementation of Basel II. To the contrary,
it is our considered judgment that these critical omissions will create
greater potential for delay and, more importantly, will undermine the
integrity and fairness of a truly extraordinary effort of reform and
modernization.
Second, WaMu and many others have specific substantive problems with
Basel II as it stands in the ANPR approach, as well as concerns with
respect to the process of implementation. There are two types of
problems. First, there are questions with respect to timing and
expectations. The second set of problems relates to the appropriateness
of the capital measurement methodologies that permeate the treatment of
certain retail products. In this connection, the proposals in the ANPR
act to disadvantage certain retail credit products by setting regulatory
capital significantly higher than best-practice estimates of capital for
such products. While we understand that the Agencies have recognized
many of these issues and believe they can be remedied, failure to
address these issues will fundamentally undermine the efficacy and
fairness of the rule from our perspective. As a result, consumers will
be prejudiced by paying more than they should for such products, and
lenders such as WaMu will be encouraged to increase the riskiness of
their portfolios, engage in regulatory capital arbitrage with the
attendant costs, or both, in addition to being disadvantaged
competitively.
Finally, WaMu has a number of other comments that we believe the
Agencies should address. We deal with these items in a more summary
fashion because other parties and groups (some of which we have
participated in) have comparative advantage to provide comments. We
will, needless to say, be delighted to amplify or clarify these comments
or others.
1.1 Integrate Into Broader Framework of U.S. Capital Regulation
The decision of whether to undertake the task of integrating and
harmonizing the Basel II effort with the broader framework of capital
regulation in the United States has received scant consideration.
Nevertheless, this effort is critical to the ultimate success of Basel
II. Accordingly, the Agencies should proceed immediately with a
rulemaking and deliberative process commencing with a new ANPR that
assures that the risk-based capital regime contemplated for the core
banks is consistent with the complex and integrated structure of capital
regulation and oversight for all banking institutions in the United
States.
In the discussion that follows, we identify and discuss three areas
that require attention in this process: the leverage test, the
well-capitalized standard, and the necessity for and desirability of a
modernized capital framework that benefits all U.S. banks and avoids any
potential for unfair and inappropriate competitive advantage or
disadvantage flowing from the capital rules.
In the three sections that follow, we address each of the above sets
of concerns.
1.1.1. The U.S. Leverage Test
Retention of a leverage test that would be potentially binding on
risk-based compliant banks is fundamentally at odds with Basel II and
will distort its effects. The new Accord dramatically departs from the
approach of the old Accord by assigning regulatory capital for credit
risk that may be considerably less than 1% of assets in the case of very
low-risk lending, such as prime single family mortgage portfolios. At
the same time, the new Accord may result in considerably greater than 8%
capital in the case of very risky or off-balance-sheet items (such as
subordinated tranches of securitization transactions). Even when
appropriate market risk capital and operational risk capital are added,
as required by the new Accord, low risk activities might entail a
regulatory capital charge that is quite low relative to past, arbitrary
notions of capital. If the new Accord is calibrated correctly for all
types of loan instruments (an objective which, in our view, has not yet
been achieved), then a bank that historically has chosen to engage in
low-risk, low margin business could find that its regulatory capital
requirement for Tier 1 capital, expressed as a percentage of total
assets, is well below 4%.
Under the Accord, this low capital level is not a “bad” thing – it is
simply indicative of the low level of risk undertaken by the bank.
Indeed, the bank with a capital charge equal to 2% of assets under the
new Accord could have exactly the same loss “confidence interval”
applied to it (99.9%) as another bank that has a capital charge equal to
10% of assets but a far riskier portfolio. The new Accord, like
best-practice economic capital measurements themselves, recognizes that
simple capital ratios, per se, do not tell much about a bank’s risk
profile or soundness.
Yet, reliance on a simple capital ratio is precisely what is done
with the U.S.’s leverage ratio. The new Accord may correctly measure a
bank’s required capital charge to be 2% of assets and, in so doing,
indicate the bank has less than a 0.1% chance of failing because it has
such low risk activities. But unless that bank holds Tier 1 capital at
least two and half times as great as the 2% risk-based capital
measure (i.e., unless the bank meets the arbitrary 5% leverage standard)
it will be deemed not well capitalized. In effect, the U.S.
leverage standard effectively negates much of what Basel II is trying to
do. The leverage standard effectively says that U.S. banks are
discouraged from engaging in low-risk activities (in which the true
economic capital requirement is less than 5%). Alternatively, if the
bank persists in engaging in such activity, it must find a way to engage
in the activity off-balance sheet so that the leverage ratio will not
apply. Either way, a bank trying to engage in low risk activity is
severely disadvantaged compared with a bank that historically has
participated in high-risk activity (activity for which real economic
capital is measured to be higher than the arbitrary 5% leverage
requirement).
For these reasons, we believe the leverage standard in the U.S.
should be removed or significantly lowered. Given the care, empirical
rigor, and robust analytics that have gone into the development of the
Basel II framework, including capital requirements for market and
operational risk, in principle the new Basel II standards should
eliminate the need for the Leverage Ratio as a minimum capital standard.
Indeed, that will be the case in many of the participating countries and
we would favor such an approach.
However, one option, short of elimination of the leverage
requirement, would be to apply the leverage ratio only to certain key
Prompt Corrective Action levels – e.g., a “significantly
under-capitalized” standard equal to 3% and a “critically
undercapitalized standard equal to 2%. Combined with the current
supervisory discretion embedded in the Prompt Corrective Action rules
that enables regulators to deem an institution as falling into a lower
PCA category, such an approach would preserve the benefits of the
leverage ratio as a bank’s condition deteriorates, but would minimize
the perverse incentives described above for healthy, well-managed,
low-risk banks.
1.1.2. U.S. Risk-Based Well-Capitalized Standards
Another critical problem with the ANPR itself is that, while based on
a sound theoretical underpinning, the new Accord does not address the
true effective minimum capital requirements in the U.S. – the so-called
“well-capitalized” standards under Prompt Corrective Action. These
standards are applied throughout the supervisory and regulatory process.
They include an arbitrary add-on of 2% to the risk-based capital ratios
for minimum Tier 1 and Total Capital under the Accord – effectively
multiplying the Basel Tier 1 requirement by 1.5 and the Basel Total
Capital Requirement by 1.25.
As a practical matter, no publicly traded large bank in the U.S. can
afford to be deemed less than well-capitalized by the regulators. Thus,
it is the “well-capitalized” standards in the U.S. that matter, not the
Basel minimum capital requirements. Other large banks in other countries
do not have such arbitrary standards heaped on to the old Accord. By
applying these standards in the U.S., in the context of a new, truly
risk-based Accord, the resulting relative capital requirements
across product lines no longer are aligned with best practice, and the
absolute capital requirements may rise substantially above any
reasonable internal best-practice estimates of Economic Capital.
To see the relative effects of the “well-capitalized” risk-based
standard in the U.S., note that the intention of Basel is to have all
banks adhere to the same “soundness” standard. In Basel II, this
soundness standard is expressed as a confidence interval – 99.9%.
Because “insolvency probability” is equal to 1 minus the confidence
interval, the higher the confidence interval the lower is the
probability of the bank failing. Basel uses this “soundness” framework
by first measuring each bank’s risk, expressed in terms of the bank’s
loss distributions (which are measured using the bank’s internal
estimates of PD and LGD within the AIRB approach). The riskier the
bank’s business, the thicker are the “tails” of the bank’s loss
distributions.
Basel II correctly tries to place each bank on the same soundness
standard by applying the same 99.9% confidence interval to each bank’s
loss distribution. That is, Basel Total Capital is defined as the
measured loss-at-the-confidence-interval using the 99.9% standard. So
far so good – all banks are treated the same. But, in the U.S., to
arrive at a well-capitalized Total Capital requirement, the Basel Total
Capital requirement is multiplied by an arbitrary 125%. The result is
that, with respect to the actually effective Total Capital requirements,
all banks in the U.S. have to adhere to a greater than 99.9% confidence
interval, and the exact confidence interval will depend on how risky
is the bank’s portfolio. No longer is there any fairness in the
application of the finely-tuned risk functions of Basel II. Indeed,
after the 1.25 multiplier is applied, the riskier the bank (i.e., the
thicker is the tail of its loss distribution) the lower is its effective
confidence interval relative to low-risk banks – a truly perverse
result.
The impact of applying arbitrary multiples to Basel capital
requirements is especially troublesome in the setting of
“well-capitalized” Tier 1 requirements in the U.S. The Basel II standard
itself is flawed in that, once the 99.9% standard is applied to arrive
at Total Capital, the Tier 1 requirement is then set arbitrarily as
one-half of the Total Capital standard. Then, to arrive at the U.S.
well-capitalized standard, the Basel Tier 1 requirement is multiplied by
an arbitrary 150%. Again, the result is that no bank has applied to its
loss distribution the same effective confidence interval as any other
bank. Every bank must adhere to a different soundness standard than
every other bank – and the riskier banks enjoy the lower effective
confidence intervals! The problem is more troublesome than with
regard to well-capitalized Total Capital, because Tier 1 capital is
equity, the type of capital that is “expensive” for each bank. In
addition, it is quite possible that in countries without a
“well-capitalized” standard, the Basel II Tier 1 requirement would, for
a very risky bank, not even bring the bank up to the equivalent of a
high junk-bond soundness level, while, in the U.S., banks with the least
risky portfolios would have a confidence interval applied to them that
constitutes a high investment grade standard. Moreover, the least risky
U.S. banks, in terms of their well-capitalized Total Capital
requirement, would have to meet a soundness standard that is the
equivalent of a triple-A standard.
To fully appreciate the perversity of the Basel II proposals, as
applied within the context of the arbitrary U.S. well-capitalized
standards, we recommend reading the high-level issues paper recently
prepared by the Risk Management Association.1 That paper
suggests that the only way to rationalize Basel II, while keeping the
carefully calibrated Basel capital functions, is to apply the same
confidence interval to all banks with respect to minimum capital
requirements, and a higher confidence interval (again, the same for all
banks) with respect to “well-capitalized” standards. Moreover, simple
fairness requires that the “well-capitalized” standards be applied
globally, not just in the U.S. Absent these basic changes to the capital
structure described in the ANPR, U.S. AIRB banks will be disadvantaged
relative to non-regulated entities and with respect to other countries’
AIRB banks. Further, low risk banks such as WaMu, that deal heavily in
certain retail activities, such as mortgage lending, with attendant loss
distributions that have “thin tails,” will be disadvantaged relative to
all other U.S. AIRB banks.
1.1.3. The Need for and Desirability of a New Capital
Framework of General Applicability
In the ANPR, the Agencies have sought comment with respect to the
implications of a bifurcated approach to capital regulation and to its
competitive consequences, suggesting that if competitive effects of the
New Accord are significant, they would consider an alternative to
address these effects.
Based upon our experience and our decision-making processes, it seems
beyond dispute that the existing framework of capital regulation can and
does affect our business, including pricing, market structure and
product structure. Indeed, remedying the perverse and distorting effect
of the Basel I regime is integral to the underlying premises of the
Basel II exercise.
The Agencies have already modernized the risk-based capital
regulation as it most affects large, complex U.S. banks, through
adoption of the securitization capital rules in January 2002. These new
rules were put in place primarily to reduce the use of “regulatory
capital arbitrage” to escape the arbitrary Basel I capital requirements.
In and of themselves, the securitization rules are not onerous. Rather,
the U.S. must act to rationalize the capital rules regarding
on-balance-sheet assets -- rules that led to the need for regulatory
capital arbitrage in the first place. It is the anachronism of these
rules and the serious distortions they create which motivated the Basel
II reform process.
To deny the benefits of what has been learned in the Basel II process
to banks (or business lines) not yet ready to implement the AIRB
approach is fundamentally unfair. Although it is difficult to quarrel
with the proposition that more complex institutions with greater
resources should be expected to employ sophisticated systems of risk
management, it does not follow that their competitors necessarily should
be competitively disadvantaged. Nor should new entrants be arbitrarily
prejudiced. Although it may not be possible to assure perfect fairness,
we do believe that the grossest effects can be eliminated.
Accordingly, we believe that the Agencies should move immediately to
modify the existing Basel I risk-based capital test currently reflected
in the Agencies' capital regulations. Our discussions with staff of all
the Agencies reflect a thoroughgoing understanding of the appropriate
content of such a regulation of general applicability. Indeed, given the
Agencies' current state of readiness in this regard, it seems entirely
counterproductive not to implement such a regulation in 2004 for all
banks including "core" banks. The experience of operating under such a
halfway house would facilitate, not impede, the evolution of a Basel II
world.
Adoption of this approach would also ameliorate one of the
significant gaps in the Basel II framework for U.S. institutions, i.e.,
the absence of an appropriate “default” capital requirement for new
products, low volume business lines, and institutions in transition – a
default capital charge other than the fundamentally discredited Basel I
framework. By determining appropriate risk weights on a system wide
basis using the insights obtained in the Basel II process, the Agencies
could create a default capital charge which could readily be applied for
core banks where the AIRB approach is not appropriate (e.g., immaterial
portfolios, new portfolios and runoff portfolios). (For further
discussion, see section 2.2 below.)
2. Additional Problems That Must Be Fixed Before Proceeding
2.1 Timing and Clarity of Explanations
In the ANPR, the Agencies have proposed “an implementation date of
January 1, 2007.” However, “establishment of a final effective date . .
. would be contingent on the issuance for public comment of a Notice of
Proposed Rulemaking, and subsequent finalization of any changes in
capital regulations that the Agencies ultimately decide to adopt.” In
light of what remains to be accomplished, WaMu respectfully requests
that the Agencies provide a realistic timetable and concrete guidance as
to specific supervisory and regulatory expectations consistent with that
timetable.
The timetable should take into account (a) the steps required to
achieve an accord in connection with the BSC framework (targeted for
Summer 2004); (b) the need to perform QIS 4 and analyze the results
(likely a six month process) as well as other studies such as the
process the Agencies have conceived with respect to Operational Risk;
(c) the publication of a Notice of Proposed Rulemaking and Proposed
Supervisory Guidance (hopefully with a 90-day comment period), receipt
and analysis of comment, and the development of a final rule and (d) the
development and publication of final supervisory guidance consistent
with the final rule.
Framed in this light it is difficult to conceive that a final rule
and final supervisory guidance could under any scenario be promulgated
prior to fourth quarter 2005 or first quarter 2006 and this assumes that
the process proceeds with greater expedition than it has to date.
Whether this scenario, which we find optimistic, is accurate or not, it
is extremely important for planning and budgeting purposes that all
parties have a clear understanding of timeframes, agreements and
expectations as the Agencies now conceive them. Although it is not our
preference, if final regulations cannot or will not be adopted before
fourth quarter 2005 or later, the Agencies should so state and do so
now.
The Agencies should set forth unambiguously their specific
expectations with respect to data collection as well as the timing. The
U.S. regulators have not yet published their initial proposals for
supervisory guidance regarding data and risk parameter estimation for
retail credit products, and the proposals regarding supervisory
guidance for commercial loan risk estimation and operational risk
estimation have not yet been finalized. As a practical matter, for some
products, large, complex institutions like WaMu cannot finalize plans
for new data capture and maintenance until we have a final, reasonably
practical, set of supervisory guidelines.
Moreover, because of tremendous variations in the extent and quality
of data among various product lines, implementation rules and guidance
should provide supervisors with substantial flexibility as to the manner
in which full implementation is “staged.” Such flexibility might take a
variety of forms, including:
• After publication of these final requirements, implementation of
the new AIRB approach, defined as the start of the “parallel
calculation period,” might take 12 to 24 months, depending on the
particular bank and the particular business line. The U.S. Agencies
should take into account this natural “delay” when arriving at its
final implementation schedule.
• The Agencies should be quite flexible in the number of years and
the exact manner in which each core or opt-in bank is permitted to
adopt a staged approach in its implementation of the AIRB approach.
• The AIRB approach would more easily and quickly be implemented
if, the data requirement were lowered to a minimum of 3 years of data
prior to full implementation during the initial implementation of the
Accord. That way, in the business line with the worst case scenario,
the bank could begin data capture at completion of the final rules and
therefore have 2 years of loan-by-loan performance data at the
beginning of the parallel calculation period, 3 years of performance
data at the start of actual implementation, and so on. In this manner,
all business lines will have had at least 5 years of data within 5
years of the final rule issuance, and many lines will, by that time,
have 10 years or more of data.
2.2 Simplified Approach for Non-AIRB Portfolios/Materiality
A simple-to-implement and risk-sensitive capital requirement should
be made available instead of a full implementation of the AIRB approach
in some instances:
• Low volume portfolios
• New portfolios
• Runoff portfolios
• Other special circumstance non-AIRB-qualifying portfolios
This method could be a version of the Basel II “Standardized”
approach or a more refined amplification adopted in a new rule of
general applicability as described above. Such a framework would be a
more risk sensitive framework than the old Accord, but would also retain
many of Basel I’s easy-to-implement and cost effective features. We
expect that this less data-driven approach will have greater uncertainty
in the measurement of unexpected loss required for capital and that this
uncertainty will be reflected in incrementally higher capital.
Within an advanced institution, a reasonable activity test
should be applied to business lines that are small in relation to the
overall size and scope of the bank. It should incorporate a cost-benefit
calculus that does not demand extravagant expenditures for little payoff
or where the data is of dubious relevance. Failure to adopt such an
approach is anti-competitive and will create barriers to entry for
particular lines of business. For example, the cost of AIRB
implementation for one of WaMu’s smaller and more unique portfolios that
would attract significant Basel II regulation is in the millions of
dollars. This cost would be considered an additional barrier to entry in
an already difficult competitive environment, as WaMu considers growing
this portfolio.
The Agencies should adopt an activity threshold equal to the lesser
of 3% of loan assets or $10 billion in business line loan assets. For
portfolios where risk does not scale with a measure like assets, a
purely risk-based threshold based on internal economic capital (say 5%
of total economic capital) may be a reasonable alternative measure.
2.3 Multi-Family Lending
Washington Mutual is one of the largest multi-family housing lenders
in the U.S. Based on our experience with our business model,
multi-family lending (MFL), particularly smaller scale MFL, is a low
risk activity that more closely resembles single family lending than a
traditional commercial lending portfolio or commercial real estate
portfolio. MFL should be dealt with distinctly from the Accord’s
approach to wholesale and Commercial Real Estate Lending. There are
three problems that need to be addressed with regard to multi-family
lending:
• Permanent MFL loans on “stabilized” properties should have lower
AVCs;
• PDs should be based on the characteristics of the facility, not
the obligor; and
• The definition of ‘default’ should be limited to the specific
facility that is in default, not all facilities of the obligor.
Unless these problems are addressed, multi-family lending will be
inappropriately penalized and discouraged relative to other lending
activities.
Permanent MFL Loans Should Have Lower AVCs.
We regard any MFL loan in the construction or absorption stage as
being on a property not yet “stabilized.” Such MFL loans reasonably
should have AVCs that are higher than permanent MFL loans – because the
demand for new buildings is probably more affected by macro or regional
economic prospects than is the demand for existing buildings (i.e.,
renters will be more sensitive to general economic prospects when
deciding whether to move to new, more expensive space). For this reason,
we would have no objection to using a higher AVC for construction and
development loans for multi-family use.
Once a property under development achieves significant sold-out or
rented-out percentages, with a debt-service-coverage ratio (DSCR)
greater than 1 (our own internal standard calls for a DSCR greater than
1.25 for at least 6 months), however, it should be treated as a
permanent loan on a “stabilized” property. Such loans are likely to have
very low AVCs relative to the C&I category in which Basel proposes to
place “low-volatility” CRE loans. That is, the demand for existing
multi-family space is likely driven by idiosyncratic events more than
systemic events. For example, a particular rental property near a large
employer may exhibit a decline in rentals if the employer moves to
another location. Such idiosyncratic events or conditions also help
determine single-family housing prices in particular locations and thus
are drivers of SFR loan performance. Thus, we think it quite likely that
true underlying AVCs for permanent MFL loans are much closer to the AVCs
for SFR – and, like other observers, we believe that the true AVCs for
SFR loans are lower than the 15% employed by Basel (see discussion
below).
Another reason for assigning lower AVCs to MFL loans than to other
CRE loans is that MFL loans typically are significantly smaller than the
loans made for retail or commercial properties. At WaMu,
• 80% of our MFL loans are less than $1mm in size.
• 42% of our MFL borrowers are individuals.
• 72% consist of loan on properties with less than 20 units
“Small” obligors – reflected in small loan size – should have lower
AVCs assigned, all else equal. This is reflected in the size adjustment
for small and medium size enterprises within the C&I capital
requirements, and it is reflected in the generally much lower AVC for
retail products than for wholesale products.
For these reasons, we are confident that a best-practice estimate of
the AVC for permanent MFL loans should be on the order of the AVC for
SFRs, rather than the 12%-24% AVCs associated with ordinary C&I loans.
WaMu is continuing to research the issue of the appropriate AVCs for MFL
and we would be pleased to share such research with the Agencies as the
results become available. An appropriate interim treatment of permanent
MFL loans2 would be to apply the SFR AVC to such loans.
PDs should be based on the characteristics of the facility.
Also, we wish to point out that the supervisory guidance provided in
the attachment to the ANPR (dealing with the assignment of PDs based on
obligor rating) is at odds with best practice. Specifically, the
supervisory guidance document requires that “commercial” loans be
assigned a rating that reflects a sense of the obligor’s PD and that,
further, the PD for the obligor should be applicable to all facilities
of the obligor. A distinguishing feature of MFL loans, however, is that
they are underwritten largely with respect to the economic qualities of
the facilities – i.e., with respect to the income producing potential of
the specific underlying real estate.
Even when “guarantees” exist that run to the obligor, in practice the
loan is originated or declined based primarily on the prospects and
characteristics of the property. Further, in some states (such as
California), commercial real estate loans are subject to a “one-action”
rule that effectively requires the lender, in the event of non-payment,
to go after either the property or the obligor, but not both. In
practice, recoveries are more certain and higher if the lender goes
after the property. Thus, from an economic perspective, the assigned
“rating” of the transaction pertains to the facility, not the obligor –
and the PD estimated for input into either the regulatory capital model
or the bank’s internal economic capital model is determined primarily by
facility characteristics.
The definition of ‘default’ should be limited to the specific
facility.
The supervisory guidance relating to commercial loans also requires
that, when a single facility of an obligor defaults, all facilities of
that obligor are deemed to be in default. In practice, however, both the
economics of the transaction and the actual language of contracts often
act specifically to attach “default status” solely to the transaction.
This is especially important to WaMu because we operate primarily in
“one-action” states – we cannot pursue both a delinquent facility and an
obligor, as a practical matter. Thus, like most lenders in such states,
we pursue the underlying collateral. A telling statistic is that only a
minority of obligors that default on one facility default on more than
one facility. In MFL, 80% of obligors that had 2 or more facilities and
defaulted on one of those facilities did not default on any other
facility.
2.4 Through-the-Cycle LGD
The ANPR and Basel’s CP3 call for the use of a “stressed” or
“recessionary” estimate of LGD for use within the Basel capital models.
The underlying concern of regulators is that banks should have enough
capital to weather a recession, or more to the point, a bank should
maintain some acceptably low probability of insolvency even during a
recession. We agree with this view. However, it is unnecessary, unwise,
and inconsistent with best-practice to accomplish this objective via the
use of “stressed” LGDs.
At its core, the regulatory objective should not be to eliminate all
bank failures, and certainly not all bank failure during a recession.
Instead, the objective should be to maintain an acceptable probability
of failure for each bank through all parts of the cycle. To do this, the
regulators should specify a “soundness level” that they wish banks to
maintain, perhaps expressed as a targeted “bond rating.” This soundness
level, within the Basel II framework, is expressed as a confidence
interval – 99.9%. Put another way, Basel II suggests that banks should
have only a 10 basis point probability of failing over the next year.
The problem arises when Basel combines the requirement of a
99.9% confidence interval with a “recessionary” LGD at all points in
the cycle. During most parts of the cycle, a 0.1% probability of
insolvency would be roughly equivalent to an A-minus rating. During a
recession, however, companies of all ratings exhibit a higher default
rate, including banks. By combining the very high confidence interval
with the recessionary LGD, Basel has come close to requiring banks to
maintain no more than a 0.1% chance of insolvency during a recession
– a standard that, if maintained throughout all parts of the cycle,
would result in the bank maintaining not an A- rating but a AAA rating
during the rest of the cycle.
We use these “ratings” as loose examples – loose because, as
indicated above, the Basel requirements do not represent the true
regulatory capital minimums in the U.S. Rather, the U.S.
“well-capitalized” standards are what counts, and these standards, if
coupled with the use of a “recessionary” LGD and a 99.9% confidence
interval would imply significantly higher capital standards than either
the market or current capital rules now require of large, complex banks.
The effect would be to a) severely hamper regulated banks in competing
for credit business with non-regulated entities and, more importantly,
b) drive up the cost of funds for those obligors whose “type” of loan
was most disadvantaged by the Basel rules.
In QIS 3, the U.S. banks used their own internal LGD estimates that,
generally, consist of through-the-cycle LGD estimates (computed as the
so-called “default-weighted” LGDs). A new QIS exercise using
“recessionary” LGDs as in the ANPR would drive regulatory capital
requirements well above the results of QIS 3 – perhaps as much as 50%
above the QIS 3 results for credit risk capital, depending on the
particular type of credit product.
To resolve this important flaw, the U.S. agencies should either use
“through-the-cycle” LGDs coupled with a high (99.9%) confidence interval
or use a recessionary LGD coupled with a lower confidence interval.
Indeed, the combination of the “well-capitalized” Tier 1 and leverage
ratio standards in the U.S., the “recessionary” LGD requirement, the
high confidence interval, and the very high retail AVCs, as a whole,
place low-risk, retail-oriented banks such as WaMu at a significant
disadvantage both to other U.S. AIRB banks and non-bank competitors.
This combination would also disadvantage U.S. AIRB banks as a whole
relative to other G-10 banks that do not have to deal with arbitrary
“well-capitalized” standards over and above the Basel minimums.
2.5 Operational Risk Should be Moved to Pillar Two
Washington Mutual is currently dedicating significant resources to
operational risk measurement and management. Our own work and research
are consistent with the general understanding that, from an analytical
perspective, the quantification of operational risk has not yet evolved
into a stable and “mature” practice, as is the case for credit risk or
market risk. There simply is no strong consensus on what constitutes
best practice and there is significant controversy regarding the
approach.3 As WaMu indicated in our response to Consultative
Proposal 3, the Pillar 1 approach to operational risk recognizes the
state of the art by not specifying the precise manner in which such
research is conducted or the way in which the “scaling” process takes
place. Nevertheless, we believe it would be highly desirable for even
these modest AMA prescriptions in CP3 (for Pillar 1) to be replaced with
some generalized principles within Pillar 2.
Our concerns are three. First, we fear that, in future iterations of
the Pillar 1 prescriptions for op risk, industry research might, when
translated into regulatory requirements, be constrained to
less-than-best-practice. In practice, the potential for the stifling of
innovation is non-trivial.
Second, WaMu is also concerned about dedicating significant resources
to developing an approach that may not be effective or is not ready for
implementation. Here again, undue investment in data or infrastructure
in response to a Pillar 1 requirement prior to a maturing of the science
risks serious misallocation of resources and diversion from a proper
focus on risk management.
Finally, there is a very significant trade-off between managing
operational risk to reduce such risk, versus requiring regulatory
capital for measured operational risk that has not been managed or
insured away. In short, we believe that until an effective and accurate
analytical approach develops, the supervisory process is the better
means of determining how well the individual bank is managing
operational risk and that operational risk should be dealt with as a
Pillar 2 matter.
If this suggestion is rejected and operational risk is retained in
Pillar 1, we believe that an all or nothing approach for AIRB banks is
undesirable and may represent a serious “barrier to entry” problem.
There is no compelling reason to adhere to such an approach, which, at a
minimum, may slow down some large banks’ implementation of the new
Accord. In Washington Mutual’s case, for example, we do not maintain a
large trading operation, nor are we a major credit risk protection
seller in the credit derivatives market, nor do we act as a major dealer
in FX or interest rate derivatives. This underscores the desirability of
the flexibility associated with a Pillar 2 approach.
In short, we believe that it should be possible for a “core” or
“opt-in” bank to be compliant with and obtain the benefit of AIRB
without being fully compliant with AMA or vice versa. Moreover, an
institution should be permitted to implement AMA for certain businesses
and not for others, at least during a transition period. Accordingly, if
operational risk capital remains within Pillar 1, we would suggest two
specific changes to the ANPR regarding operational risk capital.
First, less complex opt-in or core banks should be permitted, with
supervisory review and approval, to use a simpler version of the
operational risk capital standard – an approach such as Basel II’s
“standardized” operational risk capital charge or a variation that might
be adopted in the development of a rule of general applicability as
suggested above. If such banks meet all of the other standards for the
AIRB approach, only the operational risk capital charge would be
“simple” in nature, while the bank would comply with all other credit
risk and market risk aspects of the AIRB approach.
Second, for core or opt-in banks that do not meet some supervisory
standard of “less complex” with regard to operational risk, the AMA
approach should be phased in, with supervisory approval, over a longer
period of time than the credit and market risk aspects of the new
Accord. For example, at the start of the parallel calculation period,
the large, complex bank might be given 3 or 4 more years to phase in a
full AMA process across all business lines. Some business lines might be
subjected to the AMA process sooner than others and, with supervisory
approval, some business lines may be subject to a “standardized”
operational risk capital charge until the internal AMA process is
mature.
3. Other Issues: Excessive Cumulative Conservatism in AIRB
We appreciate the desire of regulators to be “conservative” when
setting minimum capital requirements. But, when “conservative” choices
are applied at every step in the long, complex process of arriving at
the AIRB capital requirements, the result may be a true “soundness”
level that is higher than is appropriate for banks fulfilling their
roles as financial intermediaries. In short, in CP3 and the ANPR,
regulators have gone too far. Indeed, the QIS 3 exercise indicated that,
as a group, banks would have approximately a 2% lower Basel capital
requirement than under the old Accord (when market risk and operational
risk are taken into account). We understand that this result was
consistent with desires to have the new Accord not be too different in
its results, in the aggregate, from the old Accord. Yet, the devil is in
the details.
As indicated above, the very low risk banks that would otherwise have
realized a substantial decline in regulatory capital as a result of the
new Accord will be thwarted by the existence of the arbitrary U.S.
“well-capitalized” leverage standard. Only the high-risk banks will find
that the new Accord results in significantly lower minimum capital
requirements. This issue was not addressed in QIS 3; thus the true
effect of the new Accord was a zero decline for many low risk banks
subject to the leverage requirement. Also, as noted above, QIS 3 was
conducted using “through-the-cycle” LGDs, not the “recessionary” LGDs
called for in CP3 and the ANPR. These effects are exacerbated by
conservative treatments of a number of other issues throughout the
proposal, as noted below.
3.1 Treatment of Expected Losses
On October 11, 2003, the Basel Committee issued a press release
regarding changes to the treatment of expected losses, followed by the
US Supervisors’ Joint Document “Proposed Treatment of Expected and
Unexpected Losses” on October 27, 2003. While the proposal appears to be
a step in the right direction, we are currently evaluating the details.
We will be commenting on these issues separately in the near future.
3.2 Arbitrary SFR LGD Floor of 10%
The ANPR and CP3 place arbitrary floors on PD and LGD for
single family residential (SFR) loans. The LGD floor of 10% is
especially vexing for the business of making super prime home mortgage
loans. We acknowledge that this is meant to be a transitional
arrangement; however, in the interest of calculating accurate capital
levels reflective of risk, this floor should not be included at all.
Preliminary LGD measures based on recent historical experience4
at WMI suggest that a significant fraction (>50%) of the prime mortgage
portfolio has LGD measures below 10%.
The ANPR also suggests that an exception to the 10% LGD floor might
be made for loans with private mortgage insurance (“PMI”). PMI is not
the issue in itself. Rather, the issue is the appropriateness of the
estimated LGD. For example, a mortgage with no PMI but with a 50% LTV
may have a lower LGD than a mortgage with a small amount of PMI but with
a 95% LTV. No mortgage – indeed no loan of any type – should have an
arbitrary LGD floor. Rather, the Pillar 2 process should verify that the
LGD estimation process is reasonable within the individual bank.
Generally, a well-founded LGD estimation process for SFRs should take
into account PMI and LTV, as well as several other independent
variables. Hardwired rules within Pillar 1 only serve to obscure the
underlying risk parameter estimation process. In this case, the
arbitrariness of the ANPR serves, once again, to penalize the lowest
risk endeavors.
3.3 Arbitrary PD floor of 3 Basis Points
Three basis points may sound like a low PD, but several commercial
loan PD estimation models routinely estimate PDs of one basis point for
the very highest rated obligors. Similarly, SFR obligors with very high
FICO scores, very good payment records, very low LTVs, etc., may very
well have a PD of less than 3 basis points. There is no analytically
sound basis for including such a floor, which implies that bank
supervisors are unable to evaluate adequately bank PD estimation models.
3.4 Single Family Residential Mortgage Asset Value
Correlations
The prescribed 15% asset value correlation assumed for single family
residential mortgages is very likely too high. While we recognize that
there has been some academic research on this topic, the wide range of
available results makes it clear that no consensus has been reached.5
We look forward to continued discussions on this topic and, of course,
will participate in and follow the peer review dialogue regarding the
very recently published results from the Federal Reserve Board.6
What we know now, however, is that the 15% AVC for SFR is on the very
high end of the results available (AVC results in the 6% to 15% range
from the noted references). We ask U.S. regulators to be receptive to
changes in this correlation as the latest research is reviewed and
additional research is developed. Moreover, this high asset value
correlation applied to other products collateralized by residential real
estate, but not first lien mortgages, is clearly inappropriate (see
related comment on HELOC and HELoan).
3.5 HELOC and HELoan Categorization/Asset Value
Correlations
In addition to our concerns, expressed above -- that Basel AVCs for
retail products are generally too high and that MFL AVCs should not be
included within AVCs for C&I or HVCRE -- we believe there is a separate
problem with the treatment of home equity lines of credit and term home
equity loans. Such loans are proposed to be included with SFR loans,
using the same AVCs as SFRs. However, home equity loans appear to have
risk characteristics similar to other retail loans such as credit card
facilities. Consumers appear to be using this form of secured retail
credit in ways similar to the use of unsecured loans such as revolving
credit card debt. In other words, implied AVCs for such loans should be
lower than for SFRs – the behavior of such loans is more idiosyncratic
in nature, being less influenced by systemic factors such as the
condition of housing markets or other macro economic conditions.
Supporting this idea, one recent industry survey has indicated that U.S.
banks implement AVCs in the 6-11% range for HELOCs in their economic
capital models, not the 15% prescribed in the ANPR.7 We
recognize that little independent, publicly-available research on such
AVCs exists and we ask U.S. regulators to be receptive to the outcome of
such research as it is completed.
3.6 Default Definitions Overly Complex
A problematic aspect of the implementation of the ANPR from a
probability of default standpoint is the application of a prescriptive
and complex default definition across all lines of business. The
difficulties caused by this single default definition can be categorized
into two primary areas: 1) the prescribed definition’s suitability to
the particular characteristics of a given portfolio, and 2) the
inclusion of ancillary performance states that are not representative of
actual default in a given portfolio. We strongly recommend that AIRB
banks have the latitude, given supervisory approval based on rigorous
analysis, to adopt default definitions that are more suitable to given
portfolios and that supervisors recognize the significant implementation
challenges of a highly complex definition. Furthermore, as the Risk
Management Association (RMA) notes, a more “stringent” default
definition will actually result in higher estimated PDs and lower
estimated LGDs and, for the same EL, lower capital requirements.8
Criteria in commercial defaults such as:
• Loan being sold at a loss
• Breaching an advised limit
• Consenting to a distressed restructuring
• Notification of obligor bankruptcy
present significant implementation difficulties and add little value
if retained in the definition. For example, in some portfolios, obligor
bankruptcy has little correlation with actual default . In WaMu’s MFL
portfolio, where again, ‘single action’ rules prevail, obligor
bankruptcy does not coincide with loan default (Figure 1, ‘default’
defined as 90+ days past due).
43 Defaults 3 Overlap 236 Loans with Bankrupt Obligors
Figure 1: Obligor Bankruptcy Clearly Does Not Predict Default in
Multi-Family Lending (Sampling of 1-Year MFL Loans; Bankruptcy Status
Tracked in This and Prior Periods)
Additionally, the prescribed default definition includes some
performance states that may not be indicative of default in a given
portfolio. Two particular examples of this are the inclusion of an
overdraft against a line of credit, and a consumer bankruptcy in a
real-estate secured obligation. With regard to overdraft, a one-time
overdraft where a customer over-extends his/her line but immediately
returns within the stated line does not constitute a default. Rather,
the bank may have established the line too conservatively. The proposed
standard does not account for true delinquency or default risk, and for
many banks overdrafts are sources of revenue with managed risk profiles
that are indicative of highly profitable, low-risk customer
relationships. In the case of bankruptcy, it is our experience that a
large percentage of single-family residential borrowers that file
bankruptcy immediately reaffirm their mortgage debt and continue to pay
the loan; a very small percentage of occurrences actually result in
default.
WaMu recognizes, however, that it may be deemed necessary for
regulatory capital purposes to develop a common default definition that
can be applied across all institutions rather than adopt those used
internally for risk management purposes. In this instance, WaMu supports
RMA’s stated position that the GAAP definition of default be used, both
for commercial and for retail (as enunciated in the FFIEC requirements
for retail loans). Such a straight-forward definition would eliminate
the need for multiple bookkeeping methods – e.g., one for GAAP, one for
regulatory capital, and one for internal capital. Moreover, as pointed
out in footnote 1 above, making the definition of default more stringent
than the GAAP definition will have only a small, downward effect on the
regulatory capital requirement.
3.7 Commercial Real Estate
Our comments on the ANPR’s treatment of CRE, and the associated
treatment of CRE within the supervisory guidance document, reflects the
points made above with regard to MF lending. In particular, HVCRE should
be distinguished based on whether the CRE loan is in the
construction/development stage or, rather, is stabilized. A simple
implementation strategy would be for regulators to apply the HVCRE
category to Real Estate Construction Loans in the TFR/Call Reports. All
other CRE loans would be placed in the AVC category used for ordinary
C&I loans.
Also, U.S. regulators should recognize that the supervisory guidance
given for CRE lending should differ in some respects from other
commercial lending. In particular, CRE loans are underwritten primarily
with regard to the specific property involved. The financial capacity of
the “obligor” is less important than the prospects for the property. As
mentioned above, some states may also have a “one-action” rule that
effectively precludes the lender, no matter the exact terms of the loan
contract, from going after both the obligor and the property in the
event of non-performance of the loans. Additionally, we observe real
world cases in which an obligor with several facilities will default on
one facility but not on others – leading the bank to proceed against the
non-performing property while receiving scheduled payments on the other
facilities. For these reasons:
• The U.S. should drop the requirement that an obligor rating be
established that is a representation of PD and that the PD associated
with the obligor be applied to all facilities of the obligor. In
practice, our recommendation would mean simply that the Pillar 2
process will determine whether an AIRB bank’s PD and LGD estimates are
acceptable for CRE, whenever it is appropriate to assign such
estimates at the facility level.
• The U.S. agencies should drop the definition of default
requirement that a default on any facility results in a default on all
facilities to the obligor. Indeed, unless the default definition is
consistent with accounting and contractual practice (which, for CRE,
generally operates at the facility level) there would be significant
inconsistencies between the Basel treatment of default and the
treatment of default for best-practice risk management purposes.
4. Other Issues: Securitization
In securitization, WaMu is generally supportive of the comments put
forth by industry associations such as the RMA and ISDA. One issue of
particular concern is the requirement that originating banks always be
able to calculate AIRB capital on the loans underlying the security
(so-called “KIRB”). As proposed in the ANPR, the inability of an
originating bank to calculate the amount of capital required, as if the
entire pool were not securitized (KIRB), results in its deduction from
capital of the entire tranche. In many cases, this will be a difficult
to impossible task. Like many of our peers, securities originated by
acquired institutions, legacy systems used in past
originations/securitization transactions, and complex security
structures make this a challenging request and, again, may result in an
extreme imbalance between risk and capital. Alternatives for reasonable
estimation of capital in these situations need to be developed.
5. Other Issues: Operational Risk / AMA Approach
5.1 Operational Risk Expected Loss Not Capitalized
The ANPR requires banks to hold capital against expected operational
risk losses. This requirement should be eliminated. Consistent with the
Oct. 11, 2003 statement of the Basel Committee indicating that
expected credit risk losses should be removed from capital
requirements (see section 3.1), expected operational risk losses should
be removed from operational risk capital. The capital requirement will
then exclusively address unexpected operational risk losses, consistent
with best-practice in economic capital.
Operational risk losses are part of normal, everyday business. While
not anticipated individually (or else they would be avoided), they are
anticipated in aggregate. Banks cover these costs in the prices for
individual products. Verification that an institution is appropriately
pricing for operational risk losses could be addressed as part of the
normal examination process. Therefore, there is no need for Pillar 1
capital to be charged against these regular, everyday expenses.
5.2 Credit vs. Operational Loss Distinction
Institutions should have the flexibility to classify operational risk
losses closely associated with credit processes (e.g., processing
mistakes, fraud events) as operational risk rather than credit risk. The
tools to manage and mitigate these risks are not developed around
default and recovery as in credit risk, but rather are tailored based on
the actual operations and processes involved and are more appropriately
treated within an operational risk framework. The wording in the AMA
guidance we are referring to is as follows:
“The Agencies have established a clear boundary between credit
and operational risks for regulatory capital purposes. If a loss event
has any element of credit risk, it must be treated as credit risk for
regulatory capital purposes. This would include all credit-related
fraud losses. In addition, operational risk losses with credit risk
characteristics that have historically been included in institutions’
credit risk databases will continue to be treated as credit risk for
the purposes of calculating minimum regulatory capital.” (p. 85 AMA
Guidance)
Monitoring such events from the framework of managing credit risk
will serve no purpose but to complicate the development of models,
processes, and systems meant to predict probability of default and loss
given default and, at the same time, create a duplicative process to the
actual necessary operational risk management process. In WaMu’s
experience with retail portfolios, these types of losses can occur with
high frequency and are best managed and mitigated from a tailored
operational risk approach rather than a credit risk approach built
around obligor default.
5.3 Operational Loss Reconciliation with GL at Event Level
The definition and nature of operational risk losses should be
clarified. Currently, operational risk losses must be “...recorded in
the institution’s financial statements consistent with Generally
Accepted Accounting Principles (GAAP)”. This statement seems to imply a
requirement to reconcile an institution’s loss data and the general
ledger. Many operational risk losses do not get posted to the G/L as
discrete items. The supporting information for the loss is often found
in the narrative of the incident description as opposed to in a G/L
posting document. Requiring reconcilement of general ledger information
with operational risk data would severely impact the quantity of usable
loss data in certain business lines. We suggest that reconciliations
should be conducted in aggregate, rather than event-by-event to the
general ledger.
5.4 Operational Risk Mitigation Limited to Arbitrary 20% of Capital
The 20% ceiling on the amount of capital that can be offset by
insurance appears arbitrary and an explanation is not provided on the
basis for this ceiling. This ceiling is considered particularly
restrictive when considering the qualitative criteria necessary for
insurance to qualify as a capital offset. Although the AMA approach
invites institutions to define and seek highly tailored and effective
insurance through its reliance on a highly data driven look at
operational losses, this 20% cap limits the business value that can be
realized from the entire AMA process. The ceiling serves as a
disincentive for financial institutions to fully utilize the protection
that may be afforded by insurance and other risk mitigants. WaMu
believes the capital adjustment for insurance should not be restricted
to 20% but should be based on the quality of insurance protection
provided.
Sincerely,
William A. Longbrake
Vice Chair and Chief Risk Officer
____________________________________
See “The Measurement of Required Capital versus Actual Capital, the
Treatment of Expected Losses and the Loan Loss Reserve, and the
Appropriate Soundness Standard Driving Regulatory Capital Minimums,”
Appendix to the RMA response to the ANPR, November 3, 2003.
The RMA ANPR response points out that using DSC ratios (or other devices
such as “rented-up” or “sold-out” ratios) to delineate HVCRE from other,
“stabilized” loans will involve significant implementation problems.
Therefore, RMA suggests that a simple definition of HVCRE loans be the
TFR/Call Report category of Real Estate Construction Loans. Permanent
MFL loans on stabilized properties would be defined as any MFL loan that
does not fit the Real Estate Construction Loan category.
Mark Holmes, “Measuring Operational Risk: A Reality Check”, Risk,
September 2003, pp. 84-87.
This analysis is based on 1999-2002 data and does not reflect a full SFR
cycle. WMI acknowledges that recoveries in this period may not reflect
full-cycle averages or recessionary results.
See Best Practices in
Mortgage Default Risk Estimation and Economic Capital”, Kaskowitz,
Kipkalov, Lundstedt, and Mingo, February 2002; also, see “Retail Credit
Economic Capital Estimation – Best Practices,” RMA, February 2003.
See “The Asset-Correlation Parameter in Basel II for Mortgages and
Single Family Residences”, Calem and Follain, October 15, 2003. WaMu
has not yet been able to conduct a detailed review of these
just-released results.
See “Retail Credit Economic Capital Estimation – Best Practices,” RMA,
February 2003.
As noted in the RMA response to the ANPR, more stringent, non-GAAP
definitions of default not only result in more costly PD and LGD
estimation systems, but also the net effect is actually to reduce
measured regulatory capital requirements. This is because, as more
loans are covered within the “defaulted” category, the average loss rate
on a defaulted loan (LGD) will decline (since many loans not actually on
non-accrual but included within the default definition will exhibit no
economic loss whatsoever). Within the Basel capital models, for any
given EL, a higher PD and a lower LGD results in a lower
regulatory capital requirement.
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