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For release on delivery
8:30 a.m. EDT
October 4, 2004

The Implementation of Basel II: Some Issues for Cross-Border Banking

Remarks by
Ben S. Bernanke
Member
Board of Governors of the Federal Reserve System
at the
Annual Breakfast Dialogue
Institute of International Bankers
Washington, D.C.
October 4, 2004

I am pleased to join this discussion of international banking regulation. Larry
Uhlick asked me to focus my comments on international aspects of the evolving new
capital accord, Basel II, and I am happy to comply. I should say at the beginning that the
views I will express today are not necessarily those of my colleagues at the Board of
Governors of the Federal Reserve System. 1
The implementation of Basel II will raise many practical issues, of course, but I
thought it might be most interesting for this audience if I focused on two areas important
for internationally active banks: (1) home-host supervisory cooperation, and (2) the
proposed bifurcated application of Basel II in the United States and the special issues it
creates for cross-border banking. I hope to persuade you that the U.S. banking agencies
are quite aware of these issues and are proactively attempting to address the potential
problems that these facets of Basel II implementation may create for banks that operate
both in the United States and abroad.

Home-Host: Global Banking, International Consensus, and Sovereign Countries
Banks with significant cross-border operations have understandable concerns
about the prospect of each national supervisor asking different questions about Basel II
implementation, demanding different data, applying the rules differently, or taking other
actions that increase cost or are inconsistent with the principle of consolidated
supervision. At the outset--and at the risk of feeding your worst fears--let me remind you
of the broad context in which we are working.
The Basel II capital accord is not a treaty; it is a consensus which the authorities
in each national jurisdiction will inevitably apply in their own specific ways reflecting
their preferred approaches to bank supervision and regulation. The large number of
1

lowe thanks to Ed Ettin and his colleagues for invaluable assistance in the preparation of these remarks.

-2banks with cross-border operations will continue to fall under the consolidated
supervision of their home-country supervisors. But at the same time, each host-country
supervisor is charged by its own government with ensuring that, at least at the bank
subsidiary level, legal entities operating within its jurisdiction are operating in a sound
manner with adequate capital. Since 1975, the Concordat among national supervisors has
recognized a division of labor that holds the home country responsible for consolidated
supervision and the host country for supervision of the legal entities in its jurisdiction,
whether domestic or foreign. The Concordat does not rule out differences in the concerns
and objectives of supervisors in different countries. For example, it does not matter to a
host supervisor that the consolidated entity has sufficient capital if, in a period of duress,
that capital is not available to the legal-entity subsidiary in that host country. Put
somewhat differently, the combination of global banking and sovereign states has, for
some time, produced what we may delicately call "tensions."
Such tensions have existed for years under Basel 1. Three aspects of Basel II may
raise the level of tension experienced by internationally active banks still further: (1)
Basel II is more complex, (2) it includes requirements for capital to cover operational
risk, and (3) it has all the uncertainties of the new and untested. Host-country supervisors
face the costs of adjusting to differences in the manners in which foreign banks will
implement Basel II, while the banks and home-country supervisors worry about hostsupervisor intrusions, questions, and special rules. These concerns are quite
understandable. One might choose to be philosophical and accept that there are
inevitable costs of doing business as a global bank, and of supervising global banks, in a
world of sovereign states. Fortunately the situation--as Mark Twain said about Wagner's

-3music--is "better than it sounds." A variety of efforts are underway to mitigate the
potential problems of the new system.
As you may know, the Basel Supervisors' Committee has established the Accord
Implementation Group, or AIG, headed by the vice chairman of the Basel Committee,
Canada's superintendent of financial institutions, Nicholas Le Pan. The AIG consists of
senior line supervisors from Basel member countries, who gather regularly to share best
practices and develop ways to foster consistent application across national jurisdictions.
Among its efforts is a series of case studies, in which home and host supervisors review
how the banks under study plan to implement Basel II. To date, a dozen case studies
have been launched, and more are planned. Of course, the usefulness of each case study
depends on how far along the subject bank is in its own Basel II implementation plan.
In the United States, for example, a case study focusing on Citigroup involves the
United States and a panel of about ten host-country supervisors from jurisdictions in
which Citigroup has important operations. The panel of supervisors is developing a
common understanding of how Citigroup has established its risk-management structure
and risk-measurement systems, and how the entity will use the various statistical inputs
and methodologies for determining its minimum regulatory capital requirements under
Basel II. The host-country participants are active in the process and, importantly, all
involved are working collaboratively under the principles articulated by the Basel
Supervisors' Committee. As the home-country supervisor in the Citigroup exercise, we
are organizing an outreach program to inform other host countries, not participating in the
case study, of the efforts. In addition, U.S. supervisors are involved in many other case
studies in which we are acting as the host supervisor for foreign banks' U.S. operations.

-4-

In short, efforts to ensure effective cross-border supervisory coordination are under way,
and we are committed to making them successful.
The objective of the home-host exercises is to understand what has to be done,
what information has to be shared, and what understandings have to be developed to
make host supervisors comfortable with the operations of foreign banks in their
jurisdictions, as well as to reduce the need for host supervisors to duplicate the work of
the home-country consolidated supervisor. Please note that the operative word is reduce,
not eliminate, but our hope is that the reduction will be substantial. Just as under Basel I,
host supervisors will still examine the legal entities in their country. We hope to keep the
supervisors better informed about how operations outside their jurisdiction affect the
entities they supervise, and to do this with a minimum of burden on the consolidated
organization.
The principles developed from these case studies are expected to be applied
broadly. I expect that they will include mechanisms for coordination among home and
host supervisors in the development of the work plan to be applied by the home country
in its consolidated examination. Coordination would also include the sharing of
examination results with host-country supervisors to the extent practicable. In addition,
we will do our best to promote extensive home-host communication on a continuous
basis, not just in times of stress. Overall, the AIG effort should help to reduce home-host
coordination problems considerably, but, as with Basel I, there will inevitably be bugs to
work out as implementation proceeds. During that shakeout period, some of your
concerns may tum out to be real--although, I hope and expect that they will be less
daunting or costly than you may fear.

-5-

I have focused so far on credit-risk aspects of Basel II. On the operational-risk
side, however, the home-host implementation challenges are knottier. In contrast to the
treatment for credit risk, Basel II allows both the consolidated and the individual legal
entities to benefit fully from the risk reduction associated with group-wide
diversification. However, host countries charged with ensuring the strength of the legal
entities operating in their jurisdictions will not be inclined to recognize an allocation of
group-wide diversification benefits, given that capital among legal entities is simply not
freely transferable, especially in times of stress. The Basel Supervisors' Committee has
thus proposed that "significant" subsidiaries will have to calculate stand-alone
operational-risk capital requirements that may not incorporate group-wide diversification
benefits. Other subsidiaries can use an allocated portion of the group-wide requirements,
requirements that may be calculated with diversification offsets. Host-country
supervisors, of course, have the right to demand more capital than may result from such
allocations. Thus, both the proposal for significant subsidiaries and the possible hostsupervisor response for other subsidiaries may well result in the sum of the individual
legal-entity capital requirements being greater than the consolidated-entity requirements.
Home-country supervisors of consolidated entities facing such capital demands are likely
to be more tolerant of double leverage or gearing in reflection of this reality.
In short, home-host issues under Basel II are quite real, and dealing with them
effectively will require extensive cooperation and communication. But we must
acknowledge that these issues cannot be fully avoided in a world of sovereign states; all
we can do it try to minimize the resultant costs.

-6Bifurcated Application of Basel II in the United States
Global banks have also voiced some concern about the implications of the
planned application of Basel II in the United States. As you know, in contrast to the rest
of the world, this country has proposed to offer only one option under Basel II: the
Advanced Internal Ratings Based, or A-IRB, method for credit risk and the Advanced
Management Approach, or AMA, for operational risk. For convenience, I will refer to
them together as the "advanced approach." All U.S. home-country banks and U.S.
subsidiaries of foreign banks that meet certain size or foreign-exposure criteria will be
expected to adopt the advanced approach. Others domiciled or operating here would
have the option to adopt these versions of Basel II if they meet the infrastructure
requirements. All other banks operating in the United States will remain under the
current U.S. regime, based on Basel I.
The global banks' concerns about the bifurcated U.S. application depend in part
on whether they are based here or abroad. For foreign banks the issue is the additional
complexity and perceived inequity they will face if they have chosen to operate in the rest
of the world under the foundation approach for credit risk, an approach which will not be
permissible in the United States. (I am making the reasonable assumption that the
foreign banks whose U.S. subsidiaries would be required to use the advanced approach,
or who, for competitive or other reasons, choose the advanced approach in the United
States, will be operating in their home country under the foundation approach at least.)
For U.S.-based banks the fear is that foreign rivals may get a competitive edge for one
year through lower regulatory capital requirements in some markets; the potential head
start for foreign banks arises because the permissible start date for the foundation and

-7standardized versions is the beginning of2007, while the advanced approach, with its
greater complexity for banks and supervisors, starts in all markets at the beginning of
2008.
A foreign bank under the foundation approach at home but under the advanced
approach in the United States would have to determine two variables in the United States
for its corporate exposures that would not be required of its consolidated entity: loss
given default (LGD) and exposure at default (EAD). For its consolidated entity at home
it would need to calculate only the probability of default. The U.S. subsidiary might well
find it a real challenge to gather the needed data and generate the LGD and EAD
parameters required in the United States; doing so would certainly add cost, even for an
entity using the full foundation approach at home.
The U.S. authorities did not make their decision to require the advanced approach
lightly. Given the structure and size of our markets, we believe it necessary that large
entities operating here use sophisticated techniques for risk measurement and
management that rely on bank estimates of all the risk variables required by the advanced
approach. Nonetheless, we understand our global responsibilities for cooperation. Both
bilaterally and through the AIG, we will continue to work with U.S. subsidiaries of
foreign banks and their home supervisors on transition steps, where necessary, although
we expect to continue to require full implementation within a reasonable period of time.
These transition steps could involve, for example, relying on conservative estimates of
the LGD and EAD parameters when the bank in question is not yet prepared to provide
estimates derived from its own experience. For a limited period, we also may be willing
to consider conservative methodologies for allocating consolidated operational-risk

-8capital charges to the U.S. subsidiary. Although we will do what we can to facilitate
transition, let me be clear that, for both domestic and foreign banks, we expect that plans
for full adoption will be complete within a relatively short period. Moreover, any
shortfalls in systems will have to be disclosed under Pillar 3; and we reserve the right,
under Pillar 2, to require additional capital during the transition to full implementation.
It was a difficult decision for the Basel Supervisors' Committee to delay by one

year, to 2008, the start date for implementation of the advanced approach while retaining
the 2007 target for the other approaches. The delay reflected the realities that many
banks that will be applying the advanced approach needed more time and that the
requirements in the United States for public comment and review made it impossible for
final U.S. rules to be promulgated before 2006. Thus, the earlier start for the other
approaches, along with the imposition of the 95 percent of Basel I capital floor for that
first year, 2007, seemed to all concerned to be a reasonable compromise, more practical
than trying to hold to the original schedule for all banks or delaying the start date for
approaches not permitted in the United States.
Under the circumstances, consistent with our agreement to have a single,
worldwide start date for the advanced approach, the U.S. authorities do not see any
opportunity for implementation of the advanced approach in the United States before
2008, regardless of any individual bank's ability and readiness to do so.