Micky Midha is a trainer in finance, mathematics, and computer science, with extensive teaching experience.
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Learning Objectives
Explain the concept of and compare risk management with risk tasking.
Describe elements, or building blocks, of the risk management process and identify problems and challenges that can arise in the risk management process.
Evaluate and apply tools and procedures used to measure and manage risk, including quantitative measures, qualitative assessment, and enterprise risk management.
Distinguish between expected loss and unexpected loss, and provide examples of each.
Interpret the relationship between risk and reward and explain how conflicts of interest can impact risk management.
Describe and differentiate between the key classes of risks, explain how each type of risk can arise, and assess the potential impact of each type of risk on an organization.
Explain how risk factors can interact with each other and describe challenges in aggregating risk exposures.
According to the dictionary risk is a situation involving exposure to danger.
Risk involves the uncertainty about future returns.
Opportunity comes with risk. Hence true definition of risk should also include the upside prospects along
with the downside dangers.
However, our risk awareness is not always suited to the modern world. Behavioral science shows that we
rely too much on instinct and personal experience, as biases skew our thought processes. For
example, even the way we frame risk decisions irrationally influences our willingness to take risk.
Risk cannot be always automatically linked to size of the possible cost or loss, and the actual risk is
variability of the losses, costs or returns.
Risk management is an old craft but a young science – and an even younger profession.
Risk Management v/s Risk Taking
There is a logical and instinctive give and take arrangement between risk and return.
Risk Management is concerned with minimizing the chances of incurring expected losses.
Risk Taking is assuming risk in order to achieve gains and it can be perceived in an opportunistic way.
Risk Management and Risk Taking are two sides of the same coin.
Building Blocks
Ten risk management building blocks can be isolated along the way –
The risk management process
Identifying risk: knowns and unknowns
Expected loss, unexpected loss, and tail loss
Risk factor breakdown
Structural change: from tail risk to systemic crisis
Human agency and conflicts of interest
Typology of risks and risk interactions
Risk aggregation
Balancing risk and reward
Enterprise risk management (ERM)
Most risk management disasters are caused by failures in these fundamental building blocks, rather than
the failure of some sophisticated technique. Centuries-old financial institutions have been
bankrupted because their risk management procedures ignored a certain type of risk,
misunderstood connections between risks, or did not follow the classic steps in the
risk management process.
Typology Of Risks And Risk Interactions
Given the variety of business models that firms pursue, corporate risks take many forms. However, most
firms face risks that can be categorized within the risk typology given in this chapter. This
kind of typology has many uses. It helps organizations drill down into the risk-specific
factors within each risk type, map risk management processes to avoid gaps, and hold staff
accountable for specific risk domains.
For market and credit risks, most banks recognize that risk scales alongside reward. They actively
pursue risky assets, such as particular credit segments. An increase in operational risks, on the
other hand, does not lead to greater reward, so banks avoid these risks when they can. Risk
typologies must be flexible because new risks are always emerging. New forms of operational
risk are again climbing up the risk manager’s watch list: cyber risk (particularly the risk of
hackers stealing and destroying data and compromising systems) and data privacy risk.
Furthermore, the risk types interact with one another so that risk flows. During severe crisis,
for example, risk can flow from credit risk to liquidity risk to market risk, such as the
global financial crisis of 2007–2009. The same can occur within an individual firm: the “fat
finger” of an unlucky trader (operational risk) creates a dangerous market position (market risk)
and potentially ruins the standing of the firm (reputational risk).
Market Risk
Market risk is the risk that changes in market prices and rates will negatively affect the value of an
investment.
The market risk can be subdivided into 4 categories.
Equity Price Risk,
Commodity Price Risk,
Foreign Exchange Risk and
Interest Rate Risk.
Equity risk can be broken into:
General Market Risk – Sensitivity of stock or portfolio value to the broad market
indices.
Specific Risk – Determined by factors unique to the firm.
Commodity price risk is the volatility of the price of commodities like precious metals, base metals,
agricultural commodities, energy products, etc. Since the suppliers are few in the market,
commodity prices are more volatile.
Interest rate riskis the risk that changes in interest rates may affect the market value of an
investment. It can be broken into:
Trading Risk – General risk of a drop in value.
Gap Risk – Risk due to differences in sensitivitiesof assetsand liabilitiesto
changes in interest rates.
Foreign exchange risk arises from open or imperfectly hedged positions in some foreign currency
positions, including foreign currency denominated assets and liabilities.
Market risk can be managed through the relationships between positions. The diversification benefits of
a large equity portfolio, for example, form the bedrock of investment risk management.
However, market risk also arises from these relationships. An equity portfolio designed to track the
performance of an equity market benchmark might fail to track it perfectly – a special form of
market risk. Likewise, a position intended to balance out, or hedge, another position ormarket
price behavior might do so imperfectly – a form of market risk known as basis risk.
Credit Risk
Credit Risk is the risk of an economic loss from the failure of a counterparty to fulfill its
obligations toward the other party under the contract.
Credit Risk can be decomposed under 4 subtypes –
Default Risk – The risk that the debtor will not be capable or willing
to meet the obligations, either principal or interest or both on the loan
contracted, even after a relief period has been provided.
Bankruptcy risk – The risk of holding collateralized assets provided by
defaulting party. In case of a bankrupt company, the first priority is given
to debtholders, and shareholders can claim after the debtholders have been
serviced. The risk is that the liquidation value may not be sufficient to
recover the loss.
Downgrade risk – The risk that the perceived creditworthiness of the
counterparty can deteriorate. Downgrade risk may eventually lead to default
risk.
Settlement risk – The risk due to the exchange of cash flows when a
transaction is settled, and the party which is in a net loss position might
refuse to fulfill a part or all of its obligations. This risk is also known
as counterparty risk (or Herstatt risk, associated withthe failure of
Herstatt Bank in Germany.).
Credit risk is driven by the probability of default of the counterparty, exposure amount during
default, and amount that can be recovered in case of a default. These levers can all be altered
by a firm’s approach to risk management through factors such as the quality of its
borrowers,the structure of the credit instrument (e.g., collateralization), and controls on
exposure.
The exposure amount is clear with most loans but can be volatile with other kinds of transactions. A
derivative transaction may have zero credit risk at the outset because it has no immediate value
in the market. However, it can quickly become a major counterparty credit exposure as markets
change and the position gains in value.
Traditionally, the probability of default of an obligor is assessed through identifying and evaluating
a selection of key risk factors. For example, corporate credit risk analysis looks at key
financial ratios, industry sectors, etc.
Credit standings of obligors needs to be considered and an appropriate spread is charged to each
borrower to compensate for the risk undertaken.
Credit Risk At Portfolio Level
The risk in whole portfolios of credit risk exposures is driven by obligor concentration as well as the
relationship between risk factors. The portfolio will be a lot riskier if:
It has a small number of large loans rather than many smaller loans;
The returns or default probabilities of the loans are positively correlated (e.g.,
borrowers are in the same industry or region);
The exposure amount, probability of default, and loss given default amounts are
positively correlated (e.g., when defaults rise, recovery amounts fall).
Loan portfolios should not be too much concentrated on particular maturities and time diversification
should be done, which will also reduce liquidity risks. Concentration risk should be avoided by
diversification over exposures, geographies and industries.
The state of the economy impacts the risk of the portfolio.
Risk managers use sophisticated credit portfolio models to uncover risk arising from these combinations
of risk factors.
Liquidity Risk
Liquidity risk is very difficult to quantify. Liquidity risk is also subdivided into two
parts
Funding liquidity risk, and
Market Liquidity Risk or Trading liquidity risk.
Funding liquidity risk is the risk that the entity won’t be able to raise cash to roll over its debt,
or to meet the requirements of the counterparties and fulfill capital requirements. Funding
liquidity risk threatens all kinds of firms. For example, many small and fast-growing
firms find it difficult to pay their bills quickly enough while still having sufficient funds
to invest for the future.
Banks have a special form of funding liquidity risk because their business involves creating maturity
and funding mismatches. One example of a mismatch is that banks take in short-term deposits and
lend the money out for the longer term at a higher rate of interest. Sound asset/liability
management (ALM), therefore, lies at the heart of the banking business to help reduce the
risk.There are various techniques involved in ALM, including gap and duration analyses.
Of course, banks sometimes get it wrong, with disastrous consequences. Many of the banks that failed
during the 2007-2009 global financial crisis had built up large maturitymismatches and were
vulnerable to the wholesale funding market’s perception of their creditworthiness.
Market liquidity risk, sometimes known as trading liquidity risk, is the risk that a firm will not be
able to complete a transaction at the current market price due to the non-availability of a
counterparty to trade with. It is the risk of a loss in asset value when markets temporarily
seize up. If market participants cannot, or will not, take part in the market, this may force
a seller to accept an abnormally low price, or take away the seller’s ability to turn an asset
into cash and funding at any price. Market liquidity risk can translate into funding liquidity
risk overnight in the case of banking institutions too dependent on raising funds in
fragile wholesale markets.
It can be very difficult to measure market liquidity risk. Measures of market liquidity in a normal
market, for example, might look at the number or volume of transactions and at the spread between
the bid-ask price. However, these are not necessarily good indicators that a market will
remain liquid during a time of crisis.
Operational Risk
Operational risk is the risk of incurring losses due to operational issues like technology problems,
faulty controls, fraud, management failure, human errors, natural and manmade disasters, etc. It
can be defined as the “risk of loss resulting from inadequate or failed internal
processes, people, and systems or from external events.” It includes legal risk, but excludes
business, strategic, and reputational risk. This is a deliberately broad definition, and it
includes everything from anti-money laundering risk and cyber risk to risks of terrorist attacks
and rogue trading. The outbreaks of rogue trading in the 1990s helped persuade regulators to
include operational risk in bank capital calculations.
Looking beyond the banking industry, we might include many corporate disasters under the operational
risk umbrella. These include physical operational mishaps and corporate governance scandals, such
as the crisis at energy giant Enron in 2001. The management of operational risk is the primary
day-to-day concern for many risk managers outside the financial industry, often through insurance
strategies.
The definition and measurement of operational risk continues to be problematic, however, especially in
the financial industry.
Business And Strategic Risk
Business Risks are the traditional risks of running a business, which centers around the profits of the
company, and hence affect the income statement. Business risks lie at the heart of any business
and includes all the usual worries of firms, such as customer demand, pricing
decisions, supplier negotiations, and managing product innovation. Business risk is affected
by factors such as the nature of the firm’s strategy and/or its reputation.
Strategic risk involves making large, long-term decisions about the firm’s direction, often accompanied
by major investments of capital, human resources, and management reputation. It can arise from
making poor business decisions, or their faulty executions, from improper resource allocation,
or due to lack of adaptability in the changing economic conditions.
Business and strategic risks consume much of the attention of management in non-financial firms, and
they are clearly also a key concern in financial firms. However, it is not obvious how they
relate to the other risks that we discuss or fit within each firm’s risk management framework. A
sudden fall in customer demand, the failure to launch the right kind of new product, or a
misplaced major capital investment can threaten a firm’s survival. Responsibility for these risks
lies with the firm’s general management.
Business And Strategic Risk– Examples
Political Risk
Talent Management Risk
Strategy Forecast Risk
Innovation Risk
Competitive Risk
Merger & Acquisition Risk
Reputation Risk
Reputation risk is the danger that a firm will suffer a sudden fall in its market standing or brand
with economic consequences, for example, through losing customers or counterparties. It can be
divided into two classes –belief that entity is capable and willing to meet
obligationsbelief that the entity is fair and ethical
Reputation risk usually comes about through a failure in another area of risk management that damages
confidence in the firm’s financial soundness or its reputation for fair dealing. For
example, a large failure in credit risk management can lead to rumors about a bank’s financial
soundness. Rumors can be fatal in themselves. Investors and depositors may begin to withdraw
support in the expectation that others will also withdraw support. Banks need to have plans in
place for how they can reassure markets and shore up their reputations. A reputation for
fair dealing is also critical. Large firms are expected to behave in certain ways. If a firm
misrepresents a product’s risks, it can lose important customers.
Reputation with regulators is particularly important to financial institutions. A bank that loses the
trust of a regulator may find its activities criticized and then curtailed.
The Risk Management Process
The first building block is the classic risk management process
During this process, the risk manager attempts to identify the risk, analyze the risk, assesses the
effects of any risk event, and finally manage the risk.
The first steps toward risk identification and triage take some classic forms.
Brainstorming
Structured interviews, questionnaires, and surveys
Industry resources
Loss data analysis
Basic risk triage
Hypothetical what-if analysis
Front line observation
Following the trail
The identity of the risk can be just as important as its size in determining the appropriate risk
management strategy. Across the corporate world, some risks are regarded as natural to a business
and others as quite foreign. Manufacturers, for example, often accept and manage the operational
risks of complex factory processes but try to avoid or transfer large market or credit risks.
Investors often react badly to mishaps concerning risk types they believe are unnatural to a firm
(e.g., a loss from a speculative derivatives position held by a non-financial corporation).
The risk management process culminates in a series of choices that both manage risk and help to define
the identity and purpose of the firm.
Avoid Risk: There are risks that can be sidestepped by discontinuing the business
or pursuing it using a different strategy. For example, selling into certain
markets, or off-shoring production, might be avoided to minimize political or
foreign exchange risks.
Retain Risk: There are risks that can be retained within the firm’s risk appetite.
Large risks can be retained through mechanisms such as risk capital
allocation, self-insurance, and captive insurance.
Mitigate Risk: There are risks that can be mitigated by reducing exposure,
frequency, and severity (e.g., improved operational infrastructure can
mitigate the frequency of some kinds of operational risk, hedging unwanted
foreign currency exposure can mitigate market risk, and receiving collateral
against a credit exposure can mitigate the severity of a potential default).
Transfer Risk: There are risks that can be transferred to a third party using
derivative products, structured products, or by paying a premium (e.g., to an
insurer or derivatives provider).
As the risk taker improves its risk management strategy, it will begin to avoid or mitigate
nonessential or value-destroying risk exposures, which in turn will allow it to assume more risk
in areas where it can pursue more value-creating opportunities for its stakeholders. Investment
in risk management thus allows farmers to grow more food, metals producers to produce more
metal, and banks to lend more money. Risk management allows firms to excel.
In modern economies, risk management is therefore not only about corporate survival. It is critically
important to the broader processes of specialization, scaling, efficiency, and wealth creation.
This explains why risk never really goes away. Risk management success is a platform for greater
endeavors. The risk manager is constantly identifying, evaluating, and managing risks to achieve
the right balance between creating value and exposing the firm to undue risk. However,
identifying and analyzing risk in a fast-changing world remains a major challenge.
Identifying Risk – Knowns And Unknowns
One of the easiest mistakes to make is to focus on risks that are known and measurable while ignoring
those that are unknown or unquantifiable. This figure is the second building block which sets out
a fundamental classification of known versus unknown risk.
In his famous 1921 paper, Knight distinguished between variability that cannot be quantified at all,
which he called uncertainty, and “true” risk that can be quantified in terms of
statistical science. Incalculable Knightian uncertainties can be very large
and important. Nuclear war is a major threat to the world, but its chances of happening is
impossible to estimate.
Knightian uncertainties can be managed through avoidance and other forms of risk management. For
difficult actions to be taken, there has to be agreement that the Knightian uncertainty is
plausible and extremely threatening in terms of its severity (if unquantifiable in terms
of frequency).
The boundary between Knightian uncertainty and measurable, statistical risk can be fluid.
Risk managers take responsibility for all sorts of risk, not just those that can be measured. They must
continuously search for “unknown unknowns,” including risks that are hiding in plain sight. They
cannot simply ignore Knightian uncertainties. In fact, they sometimes need to make sure their
firms avoid or transfer them.
Knightian uncertainties can be more severe and prevalent than they can be initially suspected.
However, risk managers must never treat risks that cannot be measured as if they are a known quantity.
Uncertainty and ambiguity must be acknowledged because they exist in much greater amounts for
some risky activities than for others. Our confidence in a risk measure shapes how the result
should be applied in decision-making.
Identification of correct risks and finding efficient ways to transfer them is a big challenge. Risk
Management is a zero-sum game if it involves only risk transfer, where winning parties gain at
the expense of losing parties.
The Risk Management Process – Problems and Challenges
Corporate governance failures lead to market disruptions and financial accounting frauds.
Models and their role have led to a number of questions with no easy answers.
Risk management has to be aligned with the overall business strategy.
Use of complex financial instruments and trading strategies overstate financial position and understate
risk.
Availability, consistency and organization of data management is a major concern.
Risk management has to ensure implementation of regulatory demands.
Aggregation of different types of risk is difficult with the bottom-up approach.
Risk should be distributed among participants who have the willingness and ability to take risk.
Quantitative Risk Metrics
Value at Risk (VaR) estimates how much a set of investments might lose, in a given time period. For
Example: if one-day VaR is $1 million at the 99% confidence level, it means that there is only a
1% probability that the loss will exceed $1 million on any given day. VaR is useful for liquid
positions, operating under normal market conditions, and over short period of time.
Economic capital is the amount of risk capital which is needed to secure survival in a worst-case
scenario.
Expected loss (EL) is the average loss a position taker might expect to incur from a position or
portfolio. In theory, some portfolios attract losses that rarely depart far from this average.
They might vary, for example, from year to year, but not by too much. In general, EL is
a function of 1) the probability of the risk event occurring; 2) the firm’s exposure to the
risk event; and 3) the severity of the loss if the risk event occurs. In the case of the credit
risk of a loan, these become the borrower’s probability of default (PD); the bank’s exposure
at default (EAD); and the severity of loss given default (LGD). Thus, EL is simply: EL =
EAD×LGD×PD.
Quantitative Measures
Scenario analysis is a what-if analysis in which a model’s output is calculated for a number of
scenarios. It estimates the expected value of a portfolio after a given period of time, assuming
changes in the risk factors which may not be quantified. These scenarios can range from very
likely to implausible, but still possible.
It also predicts what will happen to an investment given natural changes in the economy, allowing
investors to be better informed about how these changes will affect them.
The factors in a scenario analysis can range from interest rates and inflation to unemployment
percentages and commodities costs, and these factors would depend on what the investor wants to
know.
Stress testing is a form of scenario analysis to determine the ability of a given entity to deal with
an economic crisis. It considers an outcome based on some given stress on the entity
Risk Factor Breakdown And Interactions Between Factors
It is important for risk analysts to break risk down into discrete risk factors (like PD, LGD, EAD,
etc.) and understand how these risk factors might interact over time and under stress to generate
losses. In turn, each primary risk factor is driven by a more fundamental set of
risk factors. For example, the probability of default by a firm may be driven by its strength
or weakness in terms of key financial indicators, industry sector, management quality, etc.
A key question concerns how granular each risk factor analysis should be. Ideally, risk managers would
like to understand every significant risk factor and analyze each factor’s importance and
dynamics through the data available. To score the risk factor, the risk manager may want to
look at its sub-factors. For example, the credit risk variable of management quality may be
driven by management’s years of experience. Sometimes the loss data that can be used to isolate
and statistically examine the power of each risk variable may be limited in quantity, quality,
or descriptive detail. Machine learning and massive cloud-based computational power may prove
revolutionary in the identification of discrete risk factors.
Structural Change: From Tail Risk To Systemic Crisis
Tail risk events might be rare, but a long enough time series of data should reveal evidence of their
existence. Where data are scarce, modern risk management can sometimes apply statistical tail
risk techniques, utilizing a branch of statistics called Extreme Value Theory (EVT) to help make
tails more visible and to extract the most useful information.
When the structure of a system changes, risk increases. Large loss events may suddenly increase in
frequency or size. Risk factors might suddenly move in lockstep. In this case, more historical
data won’t help and “once-in-100-year” events might happen once a decade until the structural
problem is fixed, or proper risk management processes are adopted. A change in events does
not only affect tail risk – the amounts of EL and unexpected loss might change as well.
An important recent example was the growth in subprime lending by US banks starting in the early 2000s
and its role in the creation of the 2007–2009 global financial crisis. Unusual types of
mortgages, such as interest-only mortgages, rose quickly from comprising a small fraction
of total loans originated to a substantial share of all new mortgages. At the same time, the
proportion of loans that were subprime also increased. Structural change – looking out for it and
modeling its future effects-is the fifth building block of risk management.
Human Agency And Conflicts Of Interest
Unlike natural systems, human systems are run by intelligent participants that can react to change in a
self-reflective or even a calculating manner. Those that understand how risk is generated and
managed are in the best position to game it. They also often have the least incentive to make
the risk transparent: Why would they broadcast the potential for unexpected loss levels or
tail risks? This is one reason many financial firms employ three lines of
defense:
First line: Business line that generates, owns, and manages risk;
Second line: Risk managers that specialize in risk management and day-to-day
oversight; and
Third line: Periodic independent oversight and assurance, such as an internal
audit.
The safeguards do not always work. Risk management systems always have loopholes and become obsolete
quickly in the face of industry innovations. In a worrying number of rogue trading cases in the
banking industry, the trader had first worked in the middle or back office and thus understood
the loopholes in the risk management infrastructure. Sometimes traders and business leaders
deliberately undermine the credibility of risk management systems. Understanding the role of
human agency, self-interest, and conflict of interest, is the sixthbuilding block of risk
management.
Risk Aggregation
Given the many different types of risk and risk metrics, a key problem in risk management is the
challenge of seeing the bigger picture.
Market risk tends to be the most convenient to quantification and aggregation but controlling this risk
factor is challenging. Historically, market risk exposures were largely compared in terms of the
notional amount held in each asset (e.g., $20 million of a blue-chip stock). This was
never satisfactory. Some stocks and industry sectors were historically more volatile in price
than others. Making matters worse, it made no sense to use notional amounts to compare the risks
taken by, for example, the US treasury trading desk and a desk dealing in a volatile commodity.
The emergence of the derivatives markets in the 1970s made it crucial to improve market risk measures.
The value and risk of derivatives are driven by factors only slightly related to the notional
value of the instrument. Portfolios of derivatives are often designed so that
the individual instruments offset each other’s market risk. It therefore makes no sense to
treat the aggregate notional amounts in the portfolio as an indicator of portfolio risk. Options
trading specialists developed measures of risk, like delta (sensitivity of option value to a
change in the value of the underlying) and theta (the change in option value as the
option expirationdate approaches). These “Greeks” are invaluable risk measures on the options
trading desk.
The shortcomings of VaR were exposed more after the global financial crisis of 2007–2009. VaR only
looks at the largest loss at a given likelihood threshold; it does not examine the size of losses
beyond this threshold. For that reason, it is often said to ignore tail risk (i.e., the effect of
very severe but rare events). After the global financial crisis of 2007–2009, various remedies
for this were put forward. One of these was expected shortfall (ES), which is a statistical
measure designed to quantify the mean risk in the tail of the distribution beyond the cut-off
of the VaR measure. Bank regulators have tried to improve the way VaR is calculated, make its
calculation across the industry more consistent and reliable, and strengthen the role of
supplementary risk measures such as expected shortfall (ES) and worst-case scenario analysis.
Banks and their regulators also turned to scenario stress testing and reverse stress testing. Scenario
analysis and stress testing ignore the problem of measuring the frequency or probability of a
rare event. Instead, they focus analytical resources on imagining a reasonably
plausible worst-case scenario that may develop in stages over an extended period.
The riskmanager develops the scenario-or is handed it by a regulator-and then analyzes
theimpact of the event on the institution given its risk exposures and reactive capabilities.
Scenario analysis and stress testing can be highly quantitative and involve complex modeling, but
the numbers are all focused on assessing severity rather than frequency. Reverse
stress testing starts at the other end. The institution applies its modeling capabilities to
work out how bad losses could get, then works backwards to try to understand how those losses
were linked to its exposures and activities. How could the institution manage its activities to
avoid the worst that might happen?
The inherent drawbacks of VaR have encouraged risk managers to adopt a broader approach to risk
metrics. Aggregate risk measures are useful in their place, but they inevitably fail to capture
key dimensions of risk and must be supplemented with other approaches. Understanding risk
aggregation and its strengths and weaknesses is the eighth risk management building block.
Balancing Risk And Reward
In the banking industry, economic or risk capital is the amount of capital the firm requires based on
its understanding of its economic risks. It is distinct from regulatory capital, which is
calculated based on regulatory rules and methodologies. Economic capital and regulatory capital
are sometimes in alignment, but often generate quite different numbers.
Economic capital provides the firm with a conceptually satisfying way to balance risk and reward. For
each activity, firms can compare the revenue and profit they are making from an activity to the
amount of economic capital required to support that activity.
To factor in the cost of risk of both expected and unexpected losses, the bank can apply a classic
formula for risk-adjusted return on capital (𝑜𝑟𝑅𝐴𝑅O𝐶):
Reward can be described in terms of After-Tax Risk-Adjusted Expected Return (adjusted for expected
losses), and risk can be described in terms of economic capital. Hence
For an activity/portfolio to add value to shareholders (and the stock price), RAROC should be higher
than the cost of equity capital (i.e., the hurdle rate or minimum return on equity capital
required by the shareholders to be fairly compensated for risk).
There are many variants on the RAROC formula, applied across many different industries and
institutions. Their level of sophistication varies but all have the same purpose: to adjust
performance for risk. Four day-to-day applications stand out.
Business comparison: RAROC allows firms to compare the performance of business
lines that require different amounts of economic capital.
Investment analysis: A firm typically uses the RAROC formula that uses projected
numbers to assess likely returns from future investments (e.g., the decision
to offer a new type of credit product).
Pricing strategies: The firm can re-examine its pricing strategy for different
customer segments and products. For example, it may set prices too low to
make risk-adjusted profit in one business segment, while in another it may
reduce prices and increase market share.
Risk management cost/benefit analysis: RAROC analyses can help a firm compare the
dollar cost of risk management (e.g., benefit from risk transfer via
insurance)
Enterprise Risk Management (ERM) : More Than Adding Up Risk?
One challenge to an effective firm-wide risk management process is that at many firms, each business
division manages its own exposures independently without considering the risk exposures of other
divisions. Financial risk managers have recognized that they must build a broad picture of risk
across risk types and business lines: enterprise risk management (ERM), which is the tenth
building block of risk management. ERM projects encourage firms to think about enterprise risk
using tools such as a clear statement of corporate risk appetite and a more cohesive approach to
risk management through global risk committees, and so on.
Oftentimes, historic ERM efforts have over-focused on the need to express risk as a single number such
as economic capital or VaR. Expressing risk as a single number was too simplistic an approach.
Perhaps the biggest lesson of the 2008-2009 global financial crisis was that risk cannot be
reduced to any single number.
It is multi-dimensional, so it needs to be approached from many angles, using multiple methodologies.
It develops and crosses risk types, so even a wide view of risk types – but at only one point in time –
may miss the point.
It demands expert judgment that is combined with application of statistical science.
Digital Risk Management
According to a survey by McKinsey in 2017, the digital transformation of risk functions in financial
institutions is occurring more slowly than the transformation of customer-facing operations.
However, big changes are underway, including:
Drawing information from a wider set of sources to apply advanced analytics to
measure risk, for example, applying big data analytics to credit and
operational risks;
Faster and real-time decision-making based on more automated risk processes, for
example, automated corporate credit scoring; and
Greater productivity, as risk processes are engineered away from paper documents
towards automated work flows, for example, for reviews of documentation.
The survey found that there are big challenges involved with digitizing risk management in the form of
legacy infrastructure, limited data, and the need for new digital skills. Data scientists have
the critical skill set for digitized risk functions and may soon be in as much demand as
“rocket scientist” risk modelers