Systemic risk

Not to be confused with systematic risk.

^^^^^
CB:  In one sense there's not that much of a difference. The practices
that created the current systemic risk _are_ systematic in the sense
that speculation and financial profiteering are fundamental practices
of the system, not abnormal processes.

In another sense, this means that the description of the current
crisis as threatening the whole system -systemic- is an admission that
the current events are uniquely deep historically. Capitalism's
Chernobyl.

^^^^^^^
In finance, systemic risk is the risk of collapse of an entire
financial system or entire market, as opposed to risk associated with
any one individual entity, group or component of a system.[1] It can
be defined as "financial system instability, potentially catastrophic,
caused or exacerbated by idiosyncratic events or conditions in
financial intermediaries".[2] It refers to the risks imposed by
interlinkages and interdependencies in a system or market, where the
failure of a single entity or cluster of entities can cause a
cascading failure, which could potentially bankrupt or bring down the
entire system or market.[3] It is also sometimes erroneously referred
to as "systematic risk".

Contents [hide]
1 Explanation
2 Measurement of systemic risk
3 Factors
4 Diversification
5 Regulation
6 Project risks
7 Systemic risk and insurance
8 Discussion
9 References
10 See also



[edit] Explanation
The easiest way to understand systemic risk is to consider a bank run
which has a cascading effect on other banks which are owed money by
the first bank in trouble, causing a cascading failure. As depositors
sense the ripple effects of default, and liquidity concerns cascade
through money markets, a panic can spread through a market, creating
many sellers but few buyers. These interlinkages and the potential
"clustering" of bank runs are the issues which policy makers consider
when addressing the issue of protecting a system against systemic
risk.[1][4] Governments and market monitoring institutions (such as
the U.S. Securities and Exchange Commission (SEC), and central banks)
often try to put policies and rules in place to safeguard the
interests of the market as a whole, as all the trading participants in
financial markets are entangled in a web of dependencies arising from
their interlinkages and often policy makers are concerned to protect
the resiliency of the system, rather than any one individual in that
system.[4] Sometimes "picking winners" and protecting favored
individual participants in a system can engender moral hazard in a
system and weaken the resilience of the system as a whole.[5]

Systemic risk should not be confused with market or price risk as the
latter is specific to the item being bought or sold and the effects of
market risk are isolated to the entities dealing in that specific
item. This kind of risk can be mitigated by hedging an investment by
entering into a mirror trade.

Consider a portfolio of perfectly hedged investments, we can say that
the market risk of this portfolio is nullified. Yet, if there is a
downturn in the economy and the market as a whole sinks, the hedges
would not be of use. This is the systemic risk to the portfolio.

Insurance is often difficult to obtain against "systemic risks"
because of the inability of any counterparty to accept the risk or
mitigate against it, because, by definition, there is likely to be no
(or very few) solvent counterparties in the event of a systemic
crisis. For example it is difficult to obtain insurance for life or
property in the event of nuclear war. The essence of systemic risk is
therefore the correlation of losses. Because of the interdependencies
between market participants, an event triggering systemic risk is much
more difficult to evaluate than "specific risk". For example, while
econometric estimates and expectation proxies in business cycle
research led to a considerable improvement in forecasting recessions,
good analysis on "systemic risk" protection is often hard to obtain,
since interdependencies and counterparty risk in financial markets
play a crucial role in times of systemic stress, and the interaction
between interdependent market players is extremely difficult (or
impossible) to model accurately. If one bank goes bankrupt and sells
all its assets, the drop in asset prices may induce liquidity problems
of other banks, leading to a general banking panic.[1][4]

One concern is the potential fragility of liquidity in some highly
leveraged financial markets.[1][4] If the participants are trading at
levels far above their capital bases, then the failure of one
participant to settle trades may deprive others of liquidity, and
through a domino effect expose the whole market to systemic risk.[6]

Systemic risk can also be defined as the likelihood and degree of
negative consequences to the larger body. With respect to federal
financial regulation, the systemic risk of a financial institution is
the likelihood and the degree that the institution's activities will
negatively affect the larger economy such that unusual and extreme
federal intervention would be required to ameliorate the effects.[7]


[edit] Measurement of systemic risk
According to the Property Casualty Insurers Association of America,
there are two key assessments for measuring systemic risk, the "too
big to fail" (TBTF) and the "too interconnected to fail" (TICTF)
tests. First, the TBTF test is the traditional analysis for assessing
the risk of required government intervention. TBTF can be measured in
terms of an institution's size relative to the national and
international marketplace, market share concentration, and competitive
barriers to entry or how easily a product can be substituted. Second,
the TICTF test is a measure of the likelihood and amount of
medium-term net negative impact to the larger economy of an
institution's failure to be able to conduct its ongoing business. The
impact is measure beyond the institution's products and activities to
include the economic multiplier of all other commercial activities
dependent specifically on that institution. The impact is also
dependent on how correlated an institution's business is with other
systemic risks. [8]

Too Big To Fail: The traditional analysis for assessing the risk of
required government intervention is the "Too Big to Fail" Test (TBTF).
TBTF can be measured in terms of an institution's size relative to the
national and international marketplace, market share concentration
(using the Herfindahl-Hirschman Index for example), and competitive
barriers to entry or how easily a product can be substituted. While
there are large companies in most financial marketplace segments, the
national insurance marketplace is spread among thousands of companies,
and the barriers to entry in a business where capital is the primary
input are relatively minor. The policies of one homeowners insurer can
be relatively easily substituted for another or picked up by a state
residual market provider, with limits on the underwriting fluidity
primarily stemming from state-by-state regulatory impediments, such as
limits on pricing and capital mobility. There are arguably either no
or extremely few insurers that are TBTF in the U.S. marketplace.

Too Interconnected to Fail: A more useful systemic risk measure than a
traditional TBTF test is a "Too Interconnected to Fail" (TICTF)
assessment. An intuitive TICTF analysis has been at the heart of most
recent federal financial emergency relief decisions. TICTF is a
measure of the likelihood and amount of medium-term net negative
impact to the larger economy of an institution's failure to be able to
conduct its ongoing business. The impact is measured not just on the
institution's products and activities, but also the economic
multiplier of all other commercial activities dependent specifically
on that institution. It is also dependent on how correlated an
institution's business is with other systemic risk.[9]


[edit] Factors
Factors that are found to support systemic risks[10] are:

Economic implications of models are not well understood. Though each
individual model may be made accurate, the facts that (1) all models
across the board use the same theoretical basis, and (2) the
relationship between financial markets and the economy is not known
lead to aggravation of systemic risks.
Liquidity risks are not accounted for in pricing models used in
trading on the financial markets. Since all models are not geared
towards this scenario, all participants in an illiquid market using
such models will face systemic risks.

[edit] Diversification
Risks can be reduced in four main ways: Avoidance, Reduction,
Retention and Transfer. Systemic risk is a risk of security that
cannot be reduced through diversification. Also sometimes called
market risk or un-diversifiable risk. Participants in the market, like
hedge funds, can themselves be the source of an increase in systemic
risk[11] and transfer of risk to them may, paradoxically, increase the
exposure to systemic risk.


[edit] Regulation
One of the main reasons for regulation in the marketplace is to reduce
systemic risk.[4] However, regulation arbitrage - the transfer of
commerce from a regulated sector to a less regulated or unregulated
sector - brings markets a full circle and restores systemic risk. For
example, the banking sector was brought under regulations in order to
reduce systemic risks. Since the banks themselves could not give
credit where the risk (and therefore returns) were high, it was
primarily the insurance sector which took over such deals. Thus the
systemic risk migrated from one sector to another and proves that
regulation cannot be the sole protection against systemic risks.[12]


[edit] Project risks
In the fields of project management and cost engineering, systemic
risks include those risks that are not unique to a particular project
and are not readily manageable by a project team at a given point in
time. These risks may be driven by the nature of a company's project
system (e.g., funding projects before the scope is defined),
capabilities, or culture. They may also be driven by the level of
technology in a project or the complexity of a project's scope or
execution strategy.[13]


[edit] Systemic risk and insurance
Property casualty insurance companies, other than in a few specialized
segments, present relatively low systemic risk. They cause relatively
little counterparty risk and their liabilities are generally
independent of economic cycles or other potential systemic failures.
Regarding liabilities, property casualty products tend to be mandatory
with inelastic demand, thus revenues are less affected by other
systemic risks. Recessions or 3rd party failures do not significantly
increase workers' injuries, auto accidents or house fires. Insurance
contracts are not typically subject to further hedging or risk
arbitrage, unlike mortgage underwriting or financial guarantees.
Regarding assets, property casualty insurers don't hold other people's
money, so there wouldn't be a run on the bank and they only underwrite
based on their own assets.[14]

As an example, a large auto insurance writer would pose very little
systemic risk to the larger economy, regardless of its size.
Policyholders would be largely protected by existing state guaranty
funds and new business could be switched relatively easily to other
providers or a state residual market provider. The insurer's contracts
with its agents and other suppliers would move quickly to new
underwriters, and the beneficiaries of its investments would also
similarly move over a short perior of time. Also, the frequency of
claims is not subject to the market. If the stock market fluctuates,
there would not necessarily be a correlating rise or fall in the
amount of auto accidents.[15]


[edit] Discussion
Systemic risk evaluates the likelihood and degree of negative
consequences to the larger body. The term "systemic risk" is
frequently used in recent discussions related to the economic crisis,
such as the Subprime mortgage crisis. The systemic risk of a financial
institution is the likelihood and the degree that the institution's
activities will negatively affect the larger economy such that unusual
and extreme federal intervention would be required to ameliorate the
effects. The failing of financial firms in 2008 caused systemic risk
to the larger economy. Chairman Barney Frank has expressed concerns
regarding the vulnerability of highly-leveraged financial systems to
systemic risk and is considering how to address financial services
regulatory reform and is focusing on the issue of systemic
risk.[16][17]


[edit] References
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