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The
Gray Swan
By
Leo Melamed
Peking
University
Final
edition
Beijing,
China
April, 12, 2009

Some
people in the financial world claim that the global meltdown
that has occurred in financial markets is an example
of a Black Swan
event—random
and unexpected. In other words, it was an occurrence that so
deviated beyond what is normally expected that it was extremely
difficult to predict.
The
black swan, of course, is a large waterbird, Cygnus
astratus, and
is common in the wetlands of southwestern and
eastern Australia. It is the official state emblem
of Western Australia and is depicted on its flag.
But the history of this rare bird is steeped
in myth. It was first described in 82 A.D. by
the Roman satirist Juvenal who used the term “black
swan” to depict a creature that did not
exist. Aristotle used examples of white and black
swans to distinguish reality from the improbable.
Thus, for most of history the black swan lived
as an allegory for something that did not exist.
That myth was exploded in 1790 when the black
swan was discovered by English naturalist John
Latham. It suddenly proved the existence of the
improbable. That revelation gave rise to some
deep philosophical discourse. As Nassim Nicholas
Taleb explained in his brilliant best selling
2007 book The Black Swan, the
belief “all swans are white,” is
based on the limits of our experience. In other
words, some occurrences are unpredictable because
they deviate so far beyond what we can expect.
Was
this the case with the causes of the current financial
crisis? Was it a black swan event? I have my doubts.
Sad to say, in my opinion, much of it was predictable.
To put it another way, I will argue that the financial
meltdown was a “Gray Swan” event.
Let’s
begin by stating that the primary underlying factor for
the boom and bust that occurred was easy money. During
the past decade central bankers allowed the financial
world to became awash with liquidity. This was true for
Europe, Asia, and certainly for the U.S. The American
Federal Reserve held its target interest rate, especially,
from June 2003 to June 2004 at one percent, well below
historical levels and guidelines. Easy money led to global
excesses and a pyramid of debt. In my opinion, it was
the root cause of most of the problems.
Second,
because easy money means low interest rate structures,
there was a global pursuit by investors—businesses,
banks, financial firms, and individuals—to find
means to enhance their returns. That is a predictable
consequence. It is also no secret that by definition
higher returns means higher risk. One modern-day approach
to achieve a higher return was through over-the-counter
(OTC) derivatives. Beginning in about 1988, investment
banks found ways to repackage trillions of dollars in
loans, selling them off in slivers to investors around
the world. It began with the introduction of a financial
derivative known as a collateralized debt obligation,
(CDO), or structured investment vehicle (SIV). The value
and payments of these asset-backed securities were derived
from a portfolio of underlying assets that were packed
into the instrument: for example, corporate bonds, emerging
market bonds, asset-backed securities, subprime and other
mortgage-backed securities, REITs, bank loans, and student
loans. There was little regulatory oversight. During
the next decade and a half, CDOs and SIVs became the
fastest growing sector of the asset-backed synthetic
securities market and were sold to investors over-the-counter.
The greater the risk pieces of a CDO or SIV, the greater
returns to their investors. Rating agencies would rate
the tranches being sold without fully understanding the
totality of the risks involved. It was a recipe for disaster.
Here,
I must digress. When talking about the derivatives markets
it is imperative to understand the difference between
OTC-traded derivatives and exchange-traded futures which
are sometimes also referred to as derivatives. The two
instruments of finance are galaxies apart and must not
be confused.
-
First
and foremost, OTC markets do not have the protective
components of the futures exchanges, namely: daily
mark-to-the-market value adjustments, margin deposits,
price and position limits.
-
In
the OTC markets it is up to the banks to set the
reserves for their open positions while at futures
exchanges margin requirements are set by an independent
entity—the
clearinghouse.
-
OTC
markets do not have the guaranty of a central counterparty
clearing system (CCP).
-
The
hallmarks of exchange-traded instruments are their
disclosure and transparency procedures.
-
In
the OTC market the original contract remains in place,
sometimes for many years, increasing the total size
of the market, even where an economically offsetting
transaction is in place. Not so in futures where
an offsetting position eliminates the original contracts
and the obligation they represent.
-
The
OTC market greatly overshadows the exchange traded
market, something on the order of five times as large.
-
The
OTC markets generally lacked the regulatory control
of federal authorities to which futures and options
exchanges are subject under the Commodity Futures
Trading Commission (CFTC).
These
differences are dramatic. While nothing is perfect and
no one can foresee all eventualities, the structure and
procedures at regulated futures exchanges represent a
time-tested mechanism—the very essence of their
default-free success. On regulated exchanges, not only
are there daily clearing mechanisms, there can be no
doubt about the integrity of their daily settlement procedures.
On the other hand, in the OTC derivatives market, values
are often measured on the basis of the original model
when the instrument was created. Rating agencies make
a value determination at that time. Over time, without
some form of an updating mechanism, these valuations
can become stale or meaningless.
Consider:
In stark contrast to the turmoil of recent events, the
CME clearinghouse has operated for more than 100 years
without failure. Consider, during the current unprecedented
financial crisis, as marquee names of finance such as
Bear Stearns, Lehman Brothers, Merrill Lynch, and Bank
of America failed or trembled, the CME performed its
operational functions without a disruption. No failures,
no federal bailouts. As I stated, OTC derivatives and
exchange traded financial futures are galaxies apart.
That
is not to say, that OTC derivatives are to be banned
or feared. That would be unthinkable. For the vast majority
of financial managers, whether OTC or exchange traded,
these risk management tools work exceptionally well.
It is estimated that over 90 percent of the world's 500
largest companies—domestic and international banks,
public and private pension funds, investment companies,
mutual funds, hedge funds, energy providers, asset and
liability managers, mortgage companies, swap dealers, and
insurance companies—use OTC derivatives to help manage
their business exposure. Nor could it be different in today’s
complex and interdependent financial world. Indeed, if
OTC derivatives application were suddenly not available
in business today, they would have to be invented. Without
them, it would be like going back to the Stone Age. Still,
the lessons learned must be applied. It is imperative
that OTC derivatives have a measure of regulation, transparency,
and disclosure of attendant risks.
The
third consequence stemming from easy money was unconscionable
leverage that occurred throughout the world within some
financial enterprises, mainly investment banks and hedge
funds. In the U.S., the government played a central role.
In 2004 the Securities Exchange Commission (SEC) removed
the historical ratio limit between debt to assets of
about 12 to 1 and allowed it to go over 40 to 1. I don’t
think I need explain the nature of risk and debt created
by this eventuality. Again it was predictable.
Fourth,
mortgage refinancing combined with subprime lending.
Low rates and adjustable rate mortgages (ARM) created
a huge refinancing industry. It spread like wildfire
and resulted in a housing bubble. Subprime mortgages
were like gasoline to the eventual housing fire. Such
lending practices were based on the philosophy that everyone
should own a home. A worthy goal, but highly unrealistic.
In other words, not everyone can afford the mortgage
payments. While residential values kept rising, as they
did until they peaked in mid 2006, it didn’t seem
to matter whether the new owner could afford the home
or not. The owner was always able to re-finance at a
higher home evaluation. It substantially reduced the
equity in home ownership, raising the risk to the overall
housing market. When the boom ended home prices fell
and mortgage payments could not be met by thousands upon
thousands of homeowners, we experienced a rash of defaults
and foreclosures. The crashing housing market became
a primary cause of the recession we presently are enduring.
Again, this was predictable.
Fifth,
an adjunct to the subprime lending were the Federal National
Mortgage Association, (Fannie Mae) and the Federal Home
Mortgage Corporation, (Freddie Mac). The government mission
of these U.S. government sponsored enterprises (GSE)
created in 1968, was to keep mortgage interest rates
low in order to increase their support for affordable
housing. Again a worthy goal. In the past several years,
these two GSEs were sometimes encouraged by the U.S.
Congress to continue to buy the subprime mortgage which
gave rise to a false sense of security and resulted in
the toxic assets that U.S. government is now bailing
out.
Sixth,
the doctrine of “Too Big to Fail,” was in
my opinion mishandled. In theory of course, in a free
market system, failure by any enterprise is an acceptable
part of the bargain. Government should never intervene
to save a failing company. Let the investor lose his
investment when he has invested poorly or negligently.
Bankruptcy is the solution in “normal” circumstances.
A special methodology should be available for failure
in "unusual" circumstances. But as we know, what is acceptable
policy in theory is not always acceptable in practice.
When government concludes that there exists the danger
of systemic risk, in other words—when the entire
economic system could unravel as a result of failure
of one giant enterprise—then government may feel
beholden to intervene. This has happened throughout world
history. A word of caution, however: When government
concludes there is a need for intervention, it better
be quite certain that a) there is in fact the danger
of systemic failure, and b) the rules for intervention
are clearly defined.
In
the case of Bear Stearns, the American government judged
that the company was too big to fail. However, a few
months later, in the case of Lehman Brothers, it judged
the opposite. Then, in the case of the American International
Group (AIG), it reversed direction again. I was never
convinced that Bear Stearns was too big to fail, nor
was I ever convinced that Lehman Brothers was not. I became
convinced, however, that there was never a bright line
for the rules under which government will or will not
intervene. The market cannot handle uncertainty. Our
undefined policy caused the stock market to lose faith.
That too was predictable.
And
finally, seventh, greed. Some commercial banks, investment
banks, hedge funds and other financial institutions took
advantage of the lack of regulation, and lax rules. In
a rush for better returns they abandoned good business
practices and allowed risk to become excessively underpriced.
There was a breakdown of proper risk management controls
as greed replaced common sense. Thus, although most of
the causes of the financial failure were government inspired,
greed in the private sector was a cause factor as well.
But greed is a human frailty and predictable.
There
you have it. Clearly, there was no single culprit.
While there are other causes, the foregoing seven
sins, in my opinion, were primary. Yes, there
was lack of regulation; yes, there was failure
of regulation; yes, there was greed in the private
sector; and yes there were misjudgments made
by a host of government officials throughout
the world. But surely the blame is not with the
free market system. It represents the best economic
model ever devised by mankind. These same or
similar failures and many more have occurred
under every economic model and under every type
of government regime. Indeed, while the free
market system is not free from failings, in the
history of civilization no other system has produced
so much good for mankind nor resulted in a higher
standard of living for world populations. It
represents the only answer in the globalized
world of today, the only system that will encourage
innovation and guarantee individual freedom.
Still,
there are lessons we have learned. I will simply enumerate
the most telling: First and foremost, capital requirements
for financial institutions must be raised. Second, leverage
must be contained so that enterprises cannot become too
big to fail. Third, there must be regulatory oversight
in OTC transactions. Finally, on a voluntary basis, central
counterparty clearing for credit and OTC derivatives
must be encouraged. A CCP clearing model, in my opinion
would substantially reduce the probability that the failure
of a significant participant in the markets would lead
to a systemic failure or require government bail-out.
But,
of course, that is not the point of these remarks. My
sole purpose here today was to examine the cause and
effect of the actions which produced the current global
crisis, and to suggest that in my opinion they were all
pretty well predictable. In other words, they were not
black swan events. Probably they were more like gray
swans—and avoidable.
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