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“The Role of ‘Financial Myths’
in Financial Crises”
Eric S. Rosengren
President & Chief Executive Officer
Federal Reserve Bank of Boston
Remarks at the Boston University conference on
The State of Financial Reform
(panel on Lessons Learned from the Global
Financial Meltdown)
February 28, 2011
Boston, Massachusetts

Good morning. I’d like to thank Boston University and all the conference organizers,
particularly Larry Kotlikoff, for the opportunity to be here to discuss lessons learned from the
global financial meltdown.*
Everyone knows that the past three years have been a particularly difficult period for
global financial market stability and for the global economy. The financial crisis clearly showed

*

Of course, the views I express today are my own, not necessarily those of my colleagues on the Board of
Governors or the Federal Open Market Committee (the FOMC).
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the dramatic impact that financial problems can have on the real economy. And in spite of a fair
amount of focus on financial stability prior to the crisis, events highlighted that the private and
public sectors both here and abroad were not fully prepared for the kinds of financial shocks we
experienced.
Today I’d like to discuss the role of what I call “financial myths” in creating financial
crises. By financial myths I mean the beliefs, held by most market participants and by
regulators, that certain outcomes are so unlikely to occur that they can basically be ignored –
essentially that low probability events, based on historical experience, can be reclassified as zero
probability events. When these sorts of widespread assumptions – these financial myths – turn
out to be wrong, most financial-market participants find themselves poorly positioned for the
resulting shocks. The result is insolvency of groups of firms and substantial uncertainty –
uncertainty about the exposure of many firms to direct losses, or to indirect losses created by
their counterparty exposure to other firms that suffer direct losses.
These so-called financial myths are not unique to this time period, or to this country. I
would like to briefly mention two among the numerous examples from recent history – examples
where financial myths were important in helping to create a potential crisis. The first example
involves the assumption of many in Japan that real estate prices could not fall in the late 1980s.
The second involves the assumption, in the late 1990s, that the Internet had completely changed
how we should think about company valuation.
I will then briefly mention four financial myths that played critical roles in the recent
financial crisis. These include the following assumptions:
•

that a diversified portfolio of US real estate had little risk of falling in value;
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•

that Triple-A rated securities based on mortgages were so well protected by the
structure of the securitization that they posed little risk even if real estate prices did
fall;

•

that the evolution of many financial institutions to an “originate to distribute” model
of lending and securitization meant there was little risk exposure to declining real
estate prices; and,

•

that there was little risk of a “run” on organizations like investment banks that relied
on short-term, collateralized borrowing.

Then to conclude I’d like to briefly mention what we can and must do to reduce the risks
resulting from these sorts of financial myths, going forward. I believe that financial stability
will, in the future, be better served as we implement some of the protections afforded by the
Dodd-Frank Act; but I also suspect that doing better at protecting against various financial myths
ultimately requires a cultural change. As a discipline, risk management has been too willing to
accept that historical statistical relationships will be stable. Ideally, risk management practices
would lead us to ask things like “What will happen if the historical relationship breaks down?”
and “What assumptions would need to change for them to break down?”
Also, I will touch on the fact that challenging assumptions and understanding the risk
inherent in relying solely on historical experience should not be the responsibility of the risk
manager alone. These things also need to be better ingrained in CEOs, members of boards of
directors, and regulators. I believe we need to do a much better job of using so-called stress tests
to challenge commonly held views, so that boards of directors and regulators of firms better
understand the fundamental drivers of risks in organizations and in the financial system.

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Financial Myths in Recent History
Let me look back to the time period before the most recent crisis and share two examples
of financial myths – and, unfortunately, their messy demise. And I would emphasize that these
are just two of many examples of the phenomenon.
First, I’ll note that during the late 1980s, New England began to experience substantial
declines in residential and commercial real estate prices. My research at that time at the Boston
Fed was focused on how problems at financial institutions could disrupt credit availability.
Interestingly, in 1989 I was visited by a variety of Japanese academics and government officials.
They wanted to understand how we had missed the signs of an overheating real estate market.
As Figure 1 indicates, it was shall we say an interesting time for researchers from Japan
to ask such a question. However, when I inquired about the rapid increase in real estate prices in
their country, I always received the same answer – Japan is an island nation and had limited
buildable lots, and that prevented real estate prices from declining. This view was very widely
held. However, as you can see in Figure 2, that widely held financial myth was soon shattered.
Unfortunately, the result of this belief was eventually the crippling of some of the world’s largest
financial institutions, a long period of subpar economic growth in Japan, and eventually a
problematic deflation that Japan struggles with to this day.
A second example is provided by the growth of the Internet, and in particular the growth
in “dot-com” stock valuations, in the late 1990s. As Figure 3 shows, there was a substantial runup in stock valuations during this period. At the time I had conversations with a variety of
financial professionals in Boston who made the argument that traditional valuation measures no

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longer applied. The view assumed by many was that valuation of firms should be based on
clicks of a computer mouse rather than earnings, either current or expected in the future.
As Figure 4 shows, such enthusiasm for a new way of valuing companies was shortlived. But importantly, the substantial decline in Internet-related stocks did not create a financial
crisis. Many of the positions were equity financed – so, while significant wealth was lost,
financial institutions and financial markets did not suffer severe repercussions. That loss in
wealth helped ignite the 2001 recession, but it was a much more mild downturn than the one we
have experienced of late. With the financial infrastructure not significantly damaged, the impact
was much less severe than if individuals and firms had taken highly leveraged positions.

Financial Myths in the Recent Crisis
Now I’d like to describe, and present some charts that illustrate, four financial myths that
played a role in the recent crisis.

Myth 1 – Diversification eliminated the risk of declines in residential real estate holdings
Despite the experience of Japan’s real estate in the 1990s, and substantial declines in real
estate prices in many regions of the United States throughout history, many commentators argued
that a significant, widespread housing-price decline in a country as large and varied as the United
States had not happened historically and was very unlikely to occur.
That logic was based on what you see in Figure 5, which highlights that there had been
significant declines in some regions of the country – but the declines were coincident with
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increases elsewhere. As Figure 6 shows, there had not been recent, sustained declines in
national real estate prices. This observation, combined with the increased securitization of real
estate into diversified national portfolios, gave buyers – and those rating the securitizations –
confidence that the “real estate cycle risk” was substantially mitigated through diversification.
But, as Figure 7 shows, the assumption that a geographically diversified portfolio of real
estate assets would avoid price declines proved wrong. While prices nationally had not
experienced a substantial decline in the past, for three years the U.S. has experienced substantial
and sustained declines in prices.
Some of my colleagues point out, probably appropriately, that given the historical data
the failure to anticipate nationwide house prices falling is largely understandable. It was
certainly very widespread. What may be more surprising is that in the 2005 timeframe, when
many were expecting house prices to slow down or flatten, there was not much by way of risk
mitigation undertaken.

Myth 2 – Triple-A mortgage securities carried little risk
The securitization market – that is, the market for securities based on various slices of
pooled mortgages – grew dramatically over the past decade. One reason for the growth in
securitization was investor interest in, and demand for, securities with little credit risk but returns
above those of Treasuries.
Many buyers of such securities felt sure of two things. First, that national real estate
prices were quite unlikely to fall – in other words, our Myth 1. Second, that even in the highly

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unlikely event that the price of a national portfolio did fall, they would be protected by the
structure of the securitization. Securitizations were structured so that any losses were first borne
by lower-rated securities built from the pool of underlying mortgages. Given the structure, the
assumption was that lower-valued securities would take all potential losses if borrowers
defaulted. Many – but not all, of course1 -- assumed that home-price declines and related
defaults would have to be very extreme before the highest rated, Triple-A securities were
impacted. Under this assumption these securities fully deserved the Triple-A rating given by the
rating agencies.
I should note that making this assumption about Triple-A rated mortgage backed
securities (MBSs) proved less problematic than making this assumption about the recombined
lower tranches of mortgage-backed securities that were billed as Triple-A rated collateralized
debt obligations (CDOs). 2 But many investors focused not on the security’s underlying
components, merely on the ratings.
Figure 8 shows that Triple-A securities remained at par values as the securitization boom
gathered steam. However, Figure 9 shows that when the severity of the decline in house prices
manifested itself, even the Triple-A rated mortgage securities collapsed in value. The
combination of illiquidity, growing concerns with the real estate market, and ebbing confidence
in the ratings resulted in dramatic declines in the pricing of Triple-A securities as the financial
crisis worsened.3

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Myth 3 - The “originate to distribute” model limited the balance-sheet risk of banks
Over the decade preceding the crisis, large commercial and investment banks had become
increasingly involved in securitizing mortgage assets. They argued that this provided a steady
stream of fee income but generated little risk for the bank. While they packaged mortgages, they
were not retaining the risk in their own portfolio – instead, the risk was taken by those that
purchased the mortgage securities, particularly the lower-rated mortgage securities.
What was frequently ignored by many was the rapid growth of Triple-A mortgage
securities holdings elsewhere within the banks, as well as in off balance sheet structures. While
these off balance sheet structures were considered separate entities, banks found the potential
reputational risk of not supporting their sponsored off balance sheet risk sufficiently great that
many ended up supporting these off balance sheet structures. In a sense, “originate to distribute”
was, in practice, something more like “originate to hold, loosely, somewhat off to the side.4”
In addition, risk managers, bank management, and regulators were sufficiently lulled by
Myths 1 and 2 to develop their faith in Myth 3. The unfortunate result was that these banks were
not as protected from falling housing prices as many had assumed, and this contributed to the
substantial decline in stock prices and the need for government support for many of these large
financial intermediaries.

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Myth 4 – Investment banks were not subject to runs, because their liabilities were
collateralized
There has long been an understanding, and indeed a regulatory presumption, that banks
could be subject to “runs,” resulting in a need for both deposit insurance and a heavily regulated
environment to reduce that risk. At the same time, it had largely been presumed that investment
banks were better protected against such runs. While the balance sheets of investment banks had
substantial short-term liabilities, many of them were collateralized. Investment banks would buy
longer-term securities but finance them with short-term borrowing (using repurchase
agreements). It was assumed that because there was collateral backing up the loans, borrowers
were protected and would not run.
Financing securities with short-term borrowing allowed investment banks to substantially
expand their balance sheets, as shown in Figure 10. However, the lenders in this market were
other banks, money-market funds, and hedge funds. As questions about the value of the
collateral became more prominent, and the solvency and liquidity of investment banks became a
greater concern, many short-term lenders abandoned the market. Figure 11 shows the dramatic
change that occurred. The inability to finance large securities holdings made the traditional
model of investment banking unsustainable, and this contributed to the failure of investment
banks and the merger under duress, or conversion to bank holding companies, of others.

What Can We Do about Financial Myths, Going Forward?
We plumb this history to help us understand what we can do about financial myths, going
forward, and how we can avoid their damaging impact.
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As the previous slides have shown, taking too much confidence in historical data
repeating in the future can be dangerous – to the financial health of institutions and the financial
system. That said, we are probably not likely to see a sea-change in the tendency for
overconfidence in and reliance on recent statistical regularities.
However, there are a variety of market participants that could better protect their own
interests – and the financial system – if they spend more time understanding the key assumptions
being made in financial modeling, and have a clearer understanding of what could happen if
those assumptions were invalid. Properly done, stress testing should provide valuable
information to organizations on key risk drivers. This needs to be more than feeding a handful of
macroeconomic assumptions into a model. It requires an understanding of the events that could
lead to that macroeconomic outcome, and what other indirect effects might be likely to occur.
Who should be responsible for regular, thoughtful stress testing? Risk managers, CEOs,
and boards of directors should all understand key risk drivers – and should consider whether a
stress scenario is sufficiently severe, and whether the direct and indirect effects are reasonably
captured. Rating agencies and stock analysts should be increasingly demanding better quality
stress tests, and that the results be made available to them. Finally, regulators should be able to
compare and contrast the quality of stress tests across organizations and hold accountable those
organizations that are not keeping up with their peers.
As I mentioned at the outset, challenging assumptions and understanding risks should not
only be the responsibility of the risk manager. These things also need to be better ingrained in
CEOs, members of boards of directors, and regulators.

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Operationalizing this point is not going to be easy, but it is critical. At a fundamental
level, debunking a myth requires individuals to go against strongly and widely held beliefs, to
convince decision-makers, and to build consensus. For this to happen we may need significant
changes in the governance of risk management at banks and other parties in the financial system.
Put more plainly, we need to think about an environment where those in the position of most
influence have the incentive to “poke holes” in myths via robust stress tests, and not the
incentives to override their risk managers when the stress-test implications are not to their liking,
or risk a near-term loss of clients or market share.

Concluding Observations
New financial myths are regularly created. In closing, I will just speculate on where
some may exist that interested parties should be exploring, now.

•

Potential Myth 1 – Sovereign debt problems will not be disruptive to the world
economy. Not long ago, the sovereign debt problems were viewed as manageable
and confined to one country. However, as interest rate spreads have widened – as
shown in Figure 12 – investors are highlighting that problems in many countries have
yet to be resolved. While I believe the most likely outcome is that there are no
serious disruptions, interested parties should diligently consider scenarios that could
be disruptive, involving various countries.

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•

Potential Myth 2 – State and local financing problems will not be disruptive to the national
economy.

While much attention has been given to problems in state and local

finances, it is generally assumed that the capacity exists to resolve these problems.
While I expect these issues will be resolved without widespread or cascading
problems, we should consider what scenarios could emerge if political impasses result
in more disruptive outcomes.

These are just two of many potential scenarios that are worth exploring. However, I
would add that the recent financial crisis highlighted that unlikely events can happen, and when
they do, the outcomes can be quite costly for everyone. So the need for better risk management
is clear. Fortunately, the opportunity is there as well.
Thank you.

NOTES:
1

Boston Fed researchers note some examples of contrary analysis of Subprime ABS structures written in
2005 suggesting vulnerability to even a 5 percent fall in house prices. See "Making Sense of the
Subprime Crisis" by Paul Willen with Kristopher S. Gerardi, Andreas Lehnert and Shane Sherlund
(Brookings Papers on Economic Activity, Fall 2008).

2

Collateralized debt obligations (CDOs) constructed from subprime asset-backed securities (ABS) are
perhaps the most potent example of underestimation of risk. Triple-A rated CDOs did more damage to
balance sheets than Triple-A rated ABS.

3

Holding to maturity may have moderated some losses, but many did not have that luxury. Investors
needing to sell with the threat of downgrades suffered substantial losses, particularly in an illiquid
environment.

4

Others have called the approach “originate to hide.”
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The Role of Financial Myths in
Financial Crises
Eric S. Rosengren
President & CEO
Federal Reserve Bank of Boston
Remarks at the Boston University Conference Panel
on Lessons Learned from the Global Meltdown
February 28, 2011
EMBARGOED UNTIL MONDAY, FEBRUARY 28, 2011 8:50 A.M. EASTERN TIME OR UPON DELIVERY

www.bos.frb.org

Overview of Comments
ƒ Defining “financial myths”
ƒ Two examples of their role in a crisis:
‰
‰

Japanese real estate
“Dot-com” company valuations

2

Overview of Comments Cont…
ƒ Four financial myths:
‰

‰

‰

‰

Diversified US real estate portfolio had little risk
of falling in value
Triple-A securities were protected by securitization
structure – little risk even if real estate prices fell
The “originate to distribute” model meant little
exposure to risk of declining real estate prices
Little risk of a “run” on organizations like
investment banks
3

Overview of Comments Cont…
ƒ Reducing the risks resulting from these
financial myths
ƒ Potential myths

4

Defining Financial Myths
ƒ Favorable trends in historical data are
assumed to continue
ƒ Because outcomes are unlikely, they are
largely ignored
ƒ Investor behavior does not incorporate the
potential that an unlikely outcome can still
occur
5

Financial Myths in Recent History
Example 1:
Japanese Real Estate

6

Figure 1
Japanese Urban Land Price Indexes
March 1964 - March 1991

Source: Japan Real Estate Institute

7

Figure 2
Japanese Urban Land Price Indexes
March 1964 - March 2010

Source: Japan Real Estate Institute

8

Financial Myths in Recent History
Example 2:
“Dot-com” company valuations

9

Figure 3
Dow Jones Internet Composite Stock Price Index
July 1997 - March 2000

Source: Dow Jones, WSJ / Haver Analytics

10

Figure 4
Dow Jones Internet Composite Stock Price Index
July 1997 - January 2011

Source: Dow Jones, WSJ / Haver Analytics

11

Financial Myths in the Recent Crisis
Myth 1:
Diversification eliminated the risk of declines
in residential real estate holdings

12

Figure 5
Growth in Nominal House Prices
by Census Region*
1976:Q1 - 2007:Q1

Source: FHFA / Haver Analytics

13

Figure 6
Growth in Nominal US House Prices
1976:Q1 - 2007:Q1

Source: FHFA / Haver Analytics

14

Figure 7
Growth in Nominal US House Prices
1976:Q1 - 2010:Q4

Source: FHFA / Haver Analytics

15

Financial Myths in the Recent Crisis
Myth 2:
Triple-A mortgage securities carried little risk

16

Figure 8
Markit ABX.HE AAA Indexes
January 19, 2006 - July 9, 2007

Source: Markit

17

Figure 9
Markit ABX.HE AAA Indexes
January 19, 2006 - February 18, 2011

Source: Markit

18

Financial Myths in the Recent Crisis
Myth 3:
The “originate to distribute” model limited the
balance-sheet risk of banks

19

ƒ “Originate to distribute” model was intended to
produce fee income with little risk – assets not
held on balance sheet
ƒ Ignored: holdings “elsewhere” and off balance
sheet
‰

Reputational concerns caused off balance sheet
vehicles to become on balance sheet problems

ƒ Lulled by Myths 1 and 2; developed faith in
Myth 3
20

Financial Myths in the Recent Crisis
Myth 4:
Investment banks were not subject to runs,
because their liabilities were collateralized

21

Figure 10
Security Brokers and Dealers:
Fed Funds and Security Repurchase Agreements
1995:Q1 - 2007:Q3

Source: Federal Reserve Board / Haver Analytics

22

Figure 11
Security Brokers and Dealers:
Fed Funds and Security Repurchase Agreements
1995:Q1 - 2010:Q3

Source: Federal Reserve Board / Haver Analytics

23

Going Forward
ƒ Note the over-confidence in recent historical
data has repeated itself numerous times
ƒ We need more focus on understanding
assumptions, and what happens if they are
invalid

24

Going Forward Cont…
ƒ Stress testing, properly done can be a
structured way to question assumptions
‰

Expand responsibility / involvement of risk
managers, CEOs, boards, ratings agencies,
stock analysts, regulators

ƒ Challenge of operationalizing
‰

May require changes in governance of risk
management
25

Potential Financial Myths, Going Forward
Potential Myth 1:
Sovereign debt problems will not be
disruptive to the world economy

26

Figure 12
Spread: Ten-Year Government Bond Yields to
Ten-Year German Government Bond Yield
January 2006 - January 2011

Source: Financial Times / Haver Analytics

27

Potential Financial Myths, Going Forward
Potential Myth 2:
State and local financing problems will not
be disruptive to the national economy

28