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For release on delivery
2:00 p.m. EDT (11 a.m. PDT)
October 31, 2008

The Future of Mortgage Finance in the United States

Remarks by

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Ben S. Bernanke
Chairman
Board of Governors of the Federal Reserve System
(via satellite)
to the
UC BerkeleylUCLA Symposium:
The Mortgage Meltdown, the Economy, and Public Policy
Berkeley, California
October 31, 2008

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I appreciate the opportunity to speak: at this symposium. My remarks will focus
on the mortgage securitization process, how it has been affected by the financial crisis,
and how it may evolve in response to this crisis. In the United States, as you know,
mortgage securitization has been dominated by two government-sponsored enterprises
(GSEs), Fannie Mae and Freddie Mac, as well as by the combination of the Federal
Housing Administration (FHA) and Ginnie Mae. By contrast, private-label securitization
became a significant presence in mortgage securitization only during the past decade,
motivated in part by developments in financial engineering.
The financial crisis has upset the linkage between mortgage borrowers and capital
markets and has revealed a number of important problems in our system of mortgage
finance, including weaknesses in the structure and oversight of the GSEs and perhaps in
the originate-to-distribute model of credit provision itself. Private-label securitization has
largely stopped, and Fannie and Freddie were placed into conservatorship by their
regulator after they were judged to be operating in an unsafe and unsound manner. Our
task now is to begin thinking about how to best reestablish a link between homebuyers
and capital markets in a way that addresses the weaknesses ofthe old system. In light of
the central role that the GSEs played, and still play, any such analysis must pay particular
attention to how those institutions should evolve.
The Mortgage Market and Mortgage Securitization in the Financial Crisis

The financial crisis that began in August 2007 has entered its second year. Its
proximate cause was the end of the U.S. housing boom, which revealed serious
deficiencies in the underwriting and credit rating of some mortgages, particularly
subprime mortgages with adjustable interest rates. As subsequent events demonstrated,

-2-

however, the boom in subprime mortgage lending was only a part of a much broader
credit boom characterized by an underpricing of risk, excessive leverage, and the creation
of complex and opaque financial instruments that proved fragile under stress. The
unwinding of these developments is the source of the severe financial strain and tight
credit that now damp economic growth.
Although problems with mortgage origination were not the only cause ofthe
crisis, mortgage markets have been deeply affected. Banks and thrifts are still making
new mortgage loans, but they have tightened terms considerably, essentially closing the
private market to borrowers with weaker credit histories. hnportantly, with the
securitization market for private-label mortgage-backed securities shut down, Fannie
Mae, Freddie Mac, and Ginnie Mae currently are the only conduits through which
mortgages can be securitized and sold to investors. By contrast, in 2005, these three
entities represented only about 50 percent of the securitization market.
The ability of Fannie, Freddie, and Ginnie to continue to securitize mortgages has
largely depended on the confidence of investors that the government stands behind these
organizations. As such, it was very significant when signs emerged in midsummer that
investors were beginning to lose confidence in Fannie and Freddie. As investors became
increasingly concerned about the capital positions of these companies, the risk increased
that they would not be able to roll over their debt as needed to finance their portfolios and
purchase new loans. Eroding investor confidence in the GSEs endangered not only the
U.S. mortgage market but the financial system more generally, given the enormous
quantities of the companies' debt outstanding in private and public portfolios around the
world.

-3At the recommendation of the Administration, the Congress subsequently passed
a bill that, among other things, created a new and stronger regulator for the GSEs, the
Federal Housing Finance Agency (FHFA), and provided the Treasury with powers to
purchase GSE debt and equity. The Federal Reserve worked closely with the FHFA, the
Treasury, and the Office of the Comptroller of the Currency (OCC) to assess the financial
condition of Fannie and Freddie, including assessing the capacity of the firms to absorb
potential losses stemming from the rapid deterioration evident in single-family mortgages
and mortgage-related private-label securities. The observations of Federal Reserve and
OCC staff supported the view of the director of the FHFA that both firms were operating
in an unsafe and unsound condition. In light of these findings, the director of the FHFA
placed Fannie and Freddie into conservatorship on September 7. At the same time, the
Treasury committed to making significant capital and liquidity support available to the
GSEs to ensure the continued safety of their senior and subordinated debt and their
mortgage-backed securities. The Federal Reserve endorsed those actions as consistent
with maintaining financial stability, supporting the housing market, and protecting the
taxpayer.
The initial market reactions were positive. Funding costs for the GSEs declined
sharply, as did spreads related to mortgage pricing. Moreover, the process of securitizing
conforming mortgages remained robust, and the tens of thousands of investors in GSE
debt and mortgage-backed securities have been reassured that their investments are safe.
More recently, however, markets for GSE debt and mortgages have again come under
some stress because of the widespread dislocations in financial markets generally.

-4-

Looking beyond the immediate concerns, I agree with Secretary Paulson that the
conservatorships of Fannie Mae and Freddie Mac can usefully be viewed as a ''time
out"--one that will give everyone involved, especially the Congress, the opportunity to
reconsider the appropriate roles of Fannie and Freddie in the U.S. mortgage market. Key
objectives of that reconsideration include both minimizing systemic risk and putting in
place the most efficient mechanism possible for providing the mortgage credit necessary
to sustain homeownership and a healthy housing sector. To address these issues, we must
consider both the part played by securitization in the mortgage market and the role of the
government and government-sponsored entities in facilitating securitization.
The ability of fmancial intermediaries to sell the mortgages they originate into the
broader capital market by means of the securitization process serves two important
purposes: First, it provides originators much wider sources of funding than they could
obtain through conventional sources, such as retail deposits; second, it substantially
reduces the originator's exposure to interest rate, credit, prepayment, and other risks
associated with holding mortgages to maturity, thereby reducing the overall costs of
providing mortgage credit.
Developing an effective securitization model is not easy--according to one
economic historian, mortgage securitization schemes were tried and abandoned at least
six times between 1870 and 1940. 1 Eventually, experience provided three principles for
successful mortgage securitization. First, for the ultimate investors to be willing to
acquire and trade mortgage-backed securities, they must be persuaded that the credit
quality ofthe underlying mortgages is high and that the origination-to-distribution
1 See Kenneth Snowden (1995), "Mortgage Securitization in the United States: Twentieth Century
Developments in Historical Perspective," in Michael D. Bordo arid Richard Sylla, eds., Anglo-American
Financial Systems: Institutions and Markets in the Twentieth Century (New York: McGraw-Hill).

-5-

process is managed so that originators, such as mortgage brokers and bankers, have an
incentive to undertake careful underwriting. Second, because the pools of assets
underlying mortgage-backed securities have highly correlated risks, including interest
rate, prepayment, and credit risks, the institutions and other investors that hold these
securities must have the capacity to manage their risks carefully. Finally, because
mortgage-backed securities are complex amalgamations of underlying mortgages that
may themselves be complex to price, transparency about both the underlying assets and
the mortgage-backed security itself is essential.
During the early phases of the development of the subprime mortgage market,
most lenders and investors followed these principles. Investors readily understood the
simple senior/subordinated structure, and substantial useful information was provided
about the subprime pools. However, during the credit boom period in the United States,
worldwide demand for assets of perceived high quality became intense. Incentives to
properly underwrite and evaluate new mortgage credit weakened, and many investors
became over-reliant on credit ratings. To meet investor demand for customized products,
the securities became increasing;ly complex. Although highly sophisticated methods for
sharing risk were developed, not enough attention was paid to the risk that housing
markets might turn down sharply across a range of geographical areas. The rapid rise in
early payment defaults in the fall of 2006 signaled that something had gone wrong. As
investors lost confidence, significant flaws in the securitization process, including
inadequate risk management and disclosure as well as excessive complexity, became
apparent.

-6-

Perhaps the recent mortgage cycle will be remembered as just another failed
episode of financial innovation. But one feature that makes it different from previous
episodes was the relative success of government-sponsored securitization. Fannie Mae
and Freddie Mac continued to produce and sell significant quantities of mortgage-backed
securities to secondary-market investors throughout the period of turmoil. Their ability
to continue to securitize when private firms could not did not appear to result from
superior business models or management. Instead, investors remained willing to accept
GSE mortgage-backed securities because they continued to believe that the government
stood behind them. That experience suggests that, at least under the most stressed
conditions, some form of government backstop may be necessary to ensure continued
securitization of mortgages. However, as I will discuss, that government support can take
many forms.

The Future of the GSEs: Improving Upon the Existing Model?
How can we ensure that, in the future, mortgage securitization will be feasible
even during highly stressed financial conditions? In the remainder of my remarks, I will
consider some alternative approaches that focus largely, but not exclusively, on the
potential role of the GSEs.
One approach would be to try to return Fannie and Freddie to their preconservatorship status. In considering this possibility, we should remind ourselves ofthe
problems that have surfaced with the traditional GSE structure. First, the existing GSE
model involves an inherent conflict between the objectives of the companies' private
shareholders and the objectives of public policy. For example, the GSEs were reluctant
earlier this year to raise capital and to expand their operations, even though this would

-7have helped financial and macroeconomic stability at a time of much-reduced mortgage
availability. The GSEs' disinclination to support the mortgage market was motivated by
the fact that raising additional capital would have diluted the values of the holdings of the
existing private shareholders. Second, during the past 15 years or so, the GSEs have
operated with high leverage compared with other large financial institutions. This
relative lack of capital ultimately proved their downfall. Of course, to the extent that the
debt of the GSEs is perceived to be guaranteed by the government, it is in the
shareholders' interest for the companies to increase leverage whenever possible. Third, it
is also in the shareholders' interest for the GSEs to maximize the size of their portfolios
to take advantage of the differential between the returns to mortgage-backed securities
and the low GSE funding costs arising from the perceived guarantee. However, as the
Federal Reserve has argued for many years, the enormous GSE portfolios pose risks to
financial stability.
As a result of the concerns I just outlined, the Federal Reserve Board in the past
has advocated a three-part approach to GSE oversight: a strong regulator, capital
standards adequate for the risks the GSEs assume, and an explicit and measurable public
purpose for the GSEs' portfolios. 2 Progress has been made in meeting some of these
conditions. The Housing and Economic Recovery Act of 2008 established a strong
regulator with the power to establish more-robust capital standards and with some
authority over the size of GSE portfolios. In particular, the law directs the new regulator
to establish criteria to ensure that the portfolios are consistent with the mission and safe
and sound operations of the enterprises. However, the public purpose of the GSE
2 See Ben S. Bemanke (2007), "GSE Portfolios, Systemic Risk, and Affordable Housing," speech delivered
at the Independent Community Bankers of America's Annual Convention and Techworld (via satellite),
Honolulu, Hawaii, March 6, www.federalreserve.gov/newsevents/speech/bemanke20070306a.htm.

-8portfolios, at least during times when financial conditions are relatively normal, has not
been fully clarified, and systemic risks will remain as long as the portfolios remain large.
Moreover, the recent legislation does not fully resolve the fundamental conflict between
private shareholders and public purpose that is the source of many concerns about the
GSEs. Considering some alternative forms for the GSEs (or for mortgage securitization
generally) during this "time out" thus seems worthwhile. Needless to say, however, even
if alternative organizational structures are considered for the future, the U.S.
government's strong and effective guarantee of the obligations issued under the current
GSE structure must be maintained.

Linking the Mortgage Market and the Capital Markets: Some Alternative
Approaches
How might the GSEs be reorganized in the future to address the problems that
have been revealed with their traditional structure? Are there approaches that do not rely
on GSEs to create a robust mortgage securitization market that will function in bad times
as well as good?
Privatization. One option that has been discussed is to privatize the GSEs and let
them compete in the market as private mortgage insurers and securitizers. To eliminate
the presumption of government support and to stimulate competition, some proposals
advocating privatization call for breaking up the companies into smaller units before
privatizing them.
Privatization would solve several problems associated with the current GSE
model. It would eliminate the conflict between private shareholders and public policy
and likely diminish the systemic risks as well. Other benefits are that private entities

•

- 9presumably would be more innovative and efficient than a government agency, and that
they could operate with less interference from political interests.
However, whether the GSE model is viable without at least implicit government
support is an open question. From a public policy perspective, a greater concern with
fully privatized GSEs is whether mortgage securitization would continue under highly
stressed financial conditions. As I have noted, almost no mortgage securitization is
occurring today in the absence of a government guarantee. So, if the GSEs were
privatized, it would seem advisable to retain some means of providing government
support to the mortgage securitization process during times of turmoil. One possible
approach, suggested by Federal Reserve Board economists Diana Hancock and Wayne
Passmore, is to create a government bond insurer, analogous to the Federal Deposit
Insurance Corporation (FDIC).3 This new agency would offer, for a premium,
government-backed insurance for any form of bond financing used to provide funding to
mortgage markets. For example, debt and mortgage-backed securities issued by the
(privatized) GSEs as well as mortgage-backed bonds issued by banks would be eligible
for the guarantee. That approach would clearly limit the government's exposure while
making the benefits of explicit government support available to the market.
Covered bonds. GSE-type organizations are not essential to successful mortgage

financing; indeed, many other industrial countries without GSEs have achieved
homeownership rates comparable to that of the United States. One device that has been
widely used is covered bonds. Covered bonds are debt obligations issued by financial
3 See Diana Hancock and Wayne Passmore (2008), "Three Mortgage Innovations for Enhancing the
American Mortgage Market and Promoting Financial Stability," preliminary draft presented at the UC
Berkeley-UCLA symposium The Mortgage Meltdown, the Economy, and Public Policy, Berkeley, Calif.,
October 31, http://urbanpolicy.berkeley.edulmortgagemeltdown.htm.

- 10institutions and secured by a pool of high-quality mortgages or other assets. Today,
covered bonds are the primary source of mortgage funding for European banks, with
about $3 trillion outstanding. These instruments are subject to extensive statutory and
supervisory regulation designed to protect the interests of covered bond investors from
the risks of insolvency of the issuing bank. Legislation typically specifies the types of
collateral permitted in the cover pool, defines a minimum over-collateralization level,
provides certainty of principal and interest payments to investors in the case of
insolvency, and requires disclosures to regulators or investors or both. In addition, the
government generally provides strong assurances to investors by having bank supervisors
ensure that the cover pool assets that back the bonds are of high quality and that the cover
pool is well managed.
Issuance of covered bonds in Europe has not been unaffected by the financial
turmoil, and at times the interest rate spreads relative to government debt have risen. But
generally speaking, European banks have been able to find buyers for these bonds. For
example, issuance of covered bonds totaled more than $16 billion in September 2008,
although this amount represents a decline of 45 percent from a year earlier. Moreover,
interest rate spreads on covered bonds have typically been much narrower than the
comparable spreads on senior unsecured debt and mortgage-backed securities. This
relationship has continued to hold throughout the market turmoil, perhaps because of the
comprehensive regulatory and statutory frameworks associated with covered bonds in
most European countries.
To date, not many covered bonds have been issued in the United States, for
several reasons. First, the Federal Home Loan Banks (FHLB) can tap capital markets and

•

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provide cost-effective funding for mortgage assets. In addition, as a source of fmancing,
covered bond issuance today is not generally competitive with FHLB advances. Second,
Fannie Mae and Freddie Mac have traditionally securitized U.S. prime mortgage assets.
The GSEs' implicit government backing and their scale of securitization operations have
made it difficult for banks to use covered bonds to finance their own prime mortgages.
Third, the United States does not have the extensive statutory and supervisory regulation
designed to protect the interests of covered bond investors that exists in European
countries. To this end, the recent introduction of the FDIC policy statement on covered
bonds and the Treasury covered bond framework were constructive steps. Finally, the
cost disadvantage of covered bonds relative to securitization through Fannie and Freddie
is increased by the greater capital requirements associated with covered bond issuance.
Covered bonds do help to resolve some ofthe difficulties associated with the
originate-to-distribute model. The on-balance-sheet nature of covered bonds means that
the issuing banks are exposed to the credit quality of the underlying assets, a feature that
better aligns the incentives of investors and mortgage lenders than does the originate-todistribute model of mortgage securitization. The cover pool assets are typically actively
managed--non-perfonning assets are replaced with similar, but perfonning assets-ensuring that high-quality assets are in the cover pool at all times and providing a
mechanism for loan modifications and workouts. The structure used for such bonds tends
to be fairly simple and transparent. These features, together with the demonstrated
success of covered bonds in other countries, make this approach attractive. That said,
given longstanding features of the U.S. system such as the prominent role of the Federal
Home Loan Banks, covered bonds may remain an unattractive option to U.S. banks.

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•
Even closer ties to the government, with or without shareholders. A third

approach, besides privatization and covered bonds, is to tie the government-sponsored
enterprises even more closely to the government. In doing so, the choice must be made
whether to continue to allow an element of private ownership in these organizations.
A public utility model offers one possibility for incorporating private ownership.
In such a model, the GSE remains a corporation with shareholders but is overseen by a

public board. Beyond simply monitoring safety and soundness, the regulator would also
establish pricing and other rules consistent with a promised rate of return to shareholders.
Public utility regulation itself, of course, has numerous challenges and drawbacks, such
as reduced incentives to control costs. Nor does this model completely eliminate the
private-public conflict of the current GSE structure. But a public utility model might
allow the enterprise to retain some of the flexibility and innovation associated with
private-sector enterprises in which management is accountable to its shareholders. And,
although I have noted the problems associated with private-public conflict, that conflict is
not always counterproductive; an entity with private shareholders may be better able to
resist political influences, which, under some circumstances, may lead to better market
outcomes.
If private shareholders are excluded, several possibilities worth exploring remain.
One approach would be to structure a quasi-public corporation without shareholders that
would engage in the provision of mortgage insurance generally. Here, perhaps, one
might envision the consolidation of the GSEs and the FHA, with all securitization
undertaken by a Ginnie Mae-type organization. Private mortgage insurers could still
participate in this framework, though the role of the government in supporting mortgage

•
- 13insurance and securitization would become more explicit than it is today. Finally, one
might consider cooperative ownership structures, where the originators of mortgages
must hold the capital in the government-sponsored enterprises, analogous to the current
structure of the Federal Home Loan Banks.
Conclusion
Regardless ofthe organizational form, we must strive to design a housing
financing system that ensures the successful funding and securitization of mortgages
during times of financial stress but that does not create institutions that pose systemic
risks to our financial markets and the economy. Government likely has a role to play in
supporting mortgage securitization, at least during periods of high financial stress. But
once government guarantees are involved, the problems of systemic risks and contingent
taxpayer involvement must be dealt with clearly and credibly. Achieving the appropriate
balance among these design challenges will be difficult, but it nevertheless must be high
on the policy agenda for financial reform.