Applying Michael Porter’s Value Chain Framework to Your Business
Competitive Advantage The Value Chain and Your P&L
Applying Michael Porter’s Value Chain Framework to Your Business
E x c e r p t e d f r o m
Understanding Michael Porter:
The Essential Guide to Competition and Strategy
B y
Joan Magretta
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This chapter was originally published as chapter 3 of Understanding Michael Porter: The Essential Guide to Competition and Strategy,
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CHAPTER 3
Competitive: Advantage The Value Chain and Your P&L
NO TERM IS MORE closely associated with Porterthan competitive advantage. You hear it in compa- nies all the time, but rarely as Porter intended. Used loosely, as it
most often is, it has come to mean little more than anything an orga-
nization thinks it is good at. Implicitly, it is the weapon managers
count on to prevail against their rivals.
This misses the mark in important ways. For Porter, competitive
advantage is not about trouncing rivals, it’s about creating superior
value. Moreover, the term is both concrete and specific. If you have a
real competitive advantage, it means that compared with rivals, you
operate at a lower cost, command a premium price, or both. These are
the only ways that one company can outperform another. If strategy is to
have any real meaning at all, Porter argues, it must link directly to your
company’s financial performance. Anything short of that is just talk.
For the exclusive use of H. Li, 2020.
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If you have a real competitive advantage, it
means that compared with rivals, you
operate at a lower cost, command a premium
price, or both.
In the last chapter, we saw how the five forces shape the industry’s
average P&L. Industry structure, then, determines the performance
any company can expect just by being an “average” player in its indus-
try. Competitive advantage is about superior performance. In this
chapter we’ll trace the roots of competitive advantage to the value
chain, another key Porter framework.
Economic Fundamentals
Competitive advantage is a relative concept. It’s about superior per-
formance. What exactly does that mean? The pharmaceutical com-
pany Pharmacia & Upjohn had a seemingly impressive average return
on invested capital of 19.6 percent between 1985 and 2002. During
the same period, the steel manufacturer Nucor earned around 18
percent. Are these comparable returns? Should you conclude that
Pharmacia & Upjohn had the superior strategy?
Not at all. Relative to the steel industry, where the average return
was only 6 percent, Nucor was a stellar performer. In contrast, Phar-
macia & Upjohn lagged its industry, in which the superior performers
earned more than 30 percent. (For an explanation of why Porter uses
return on capital, see the box “Right and Wrong Measures of Com-
petitive Success.”)
In gauging competitive advantage, then, returns must be mea-
sured relative to other companies within the same industry, rivals
UNDERSTANDING MICHAEL PORTER2
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who face a similar competitive environment or a similar configura-
tion of the five forces. Performance is meaningfully measured only
on a business-by-business basis because this is where competitive
forces operate and competitive advantage is won or lost. Just to keep
our terminology straight, for Porter strategy always means “competi-
tive strategy” within a business. The business unit, and not the com-
pany overall, is the core level of strategy. Corporate strategy refers to
the business logic of a multiple-business company. The distinction
matters. Porter’s research shows that overall corporate return in a
diversified corporation is best understood as the sum of the returns
of each of its businesses. While the corporate parent can contribute
to performance (or, as has been known to happen, detract from it),
the dominant influences on profitability are industry specific.
F I G U R E 3 – 1
The right analytics: Why are some companies more profitable than others?
A company’s performance has two sources:
INDUSTRY STRUCTURE
RELATIVE POSITION
Porter’s framework
Five forces Value chain
The analysis focuses on
Drivers of industry profitability
Differences in activities
The analysis explains
Industry average price and cost
Relative price and cost
If a company has a COMPETITIVE ADVANTAGE, it can sustain higher relative prices and/or lower relative costs than its rivals in an industry.
3 Competitive Advantage
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Right and Wrong Measures of Competitive Success
What is the right goal for strategy? How should you measure com-
petitive success? Porter is sometimes criticized for not paying
enough attention to people, to management’s softer side. Yet he is
adamant about the importance of setting the right goal, a view that
couldn’t be more people-centric.
As any manager knows, goals—and how performance is mea-
sured against them—have a huge impact on how people in organi-
zations behave. Goals affect the choices managers make. Although
managerial psychology has never been the central focus of Porter’s
work, this insight about behavior informs his thinking. Start out
with the wrong goal—or with goals defined in a misleading way—
and you will likely end up in the wrong place.
Performance, Porter argues, must be defined in terms that
reflect the economic purpose every organization shares: to produce
goods or services whose value exceeds the sum of the costs of all
the inputs. In other words, organizations are supposed to use
resources effectively.
The financial measure that best captures this idea is return on
invested capital (ROIC). ROIC weighs the profits a company gener-
ates versus all the funds invested in it, operating expenses and cap-
ital. Long-term ROIC tells you how well a company is using its
resources.* It is also, Porter points out, the only measure that
* Note that the time horizon for evaluating ROIC will vary depending on the invest- ment cycle that characterizes the industry. In the aluminum industry, for example, where it can take eight years to bring a new smelter on-line, the appropriate time horizon is probably a decade. In contrast, three to five years is more appropriate for many service businesses. In a business with little capital, other measures of effec- tive resource use may be required. For example, a consulting firm might measure returns per partner.
UNDERSTANDING MICHAEL PORTER4
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matches the multidimensional nature of competition: creating
value for customers, dealing with rivals, and using resources pro-
ductively. ROIC integrates all three dimensions. Only if a company
earns a good return can it satisfy customers in a sustainable way.
Only if it uses resources effectively can it deal with rivals in a sus-
tainable way.
The logic is clear and compelling. Yet when companies choose
their goals—or when they accept the goals financial markets impose
on them—this basic logic is often nowhere to be seen. When Porter
questions why so few companies are able to maintain successful
strategies, he often points to flawed goals as the culprit:
• Return on sales (ROS) is used widely, although it ignores the
capital invested in the business and therefore is a poor measure
of how well resources have been used.
• Growth is another widely embraced goal, along with its sister
goal, market share. Like ROS, these fail to account for the capi-
tal required to compete in the industry. Too often companies pur-
sue unprofitable growth that never leads to superior return on
capital. As Porter notes wryly when he talks to managers, most
companies could instantly achieve rapid growth simply by cut-
ting their prices in half.
• Shareholder value, measured by stock price, has proven to be a
spectacularly unreliable goal, yet it remains a powerful driver of
executive behavior. Stock price, Porter warns, is a meaningful
measure of economic value only over the long run. (For more on
this, see Porter’s comments in the interview at the end of this book.)
As Southwest Airline’s former CEO Herb Kelleher observes,
flawed goals such as these lead to bad decisions. “‘Market share
Competitive Advantage 5
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If you have a competitive advantage, then, your profitability will be
sustainably higher than the industry average (see figure 3-1). You will
be able to command a higher relative price or to operate at a lower
relative cost, or both. Conversely, if a company is less profitable than
its rivals, by definition it has lower relative prices or higher relative
costs, or both. This basic economic relationship between relative
price and relative cost is the starting point for understanding how
companies create competitive advantage.
has nothing to do with profitability,’ he says. ‘Market share says we
just want to be big; we don’t care if we make money doing it. That’s
what misled much of the airline industry for fifteen years, after
deregulation. In order to get an additional 5 percent of the market,
some companies increased their costs by 25 percent. That’s really
incongruous if profitability is your purpose.’”
Porter’s solution to this problem requires some courage: the only
way to know if you are achieving the ultimate goal of creating eco-
nomic value is to be brutally honest about the true profits you’ve
earned and all the capital you’ve committed to the business. Strat-
egy, then, must start not only with the right goal, but also with a
commitment to measure performance accurately and honestly.
That’s a tall order, not because it’s technically challenging, but
because the overwhelming tendency in organizations is to make
results look as good as you possibly can.
The same logic applies to nonprofits. Even though they operate
in a world without market prices, and therefore without literal prof-
its, the measure of performance should be the same: Does this
organization use resources effectively? Measuring performance in
the social sector is an equally tall order, one that is not undertaken
as often or as rigorously as it should be.
UNDERSTANDING MICHAEL PORTER6
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From here Porter takes us through a thought process that’s a lot
like peeling an onion. First, disaggregate the overall profitability num-
ber into its two components, price and cost. This is done because the
underlying causal factors, the drivers of price and cost, are so differ-
ent, and the implications for action are different as well.
Relative Price
A company can sustain a premium price only if it offers something that
is both unique and valuable to its customers. Apple’s hot, must-have
gadgets have commanded premium prices. Ditto for the high-speed
Madrid-to-Barcelona train and the trucks Paccar creates for owner-
operators. Create more buyer value and you raise what economists call
willingness to pay (WTP), the mechanism that makes it possible for a
company to charge a higher price relative to rival offerings.
For many years, U.S. automakers could sell basic passenger cars
only by offering substantial rebates or other financial incentives rela-
tive to companies such as Honda and Toyota. In 2010, a wave of new
products from Ford was beginning to end that long-standing relative
price disadvantage. The new Ford Fusion was a top pick of auto
critics at Motor Trend and Consumer Reports, winning praise for qual-
ity and reliability. Car buyers seemed to agree. Of the record $1.7 bil-
lion Ford earned in the third quarter of 2010, Ford attributed $400
million to higher prices.
In industrial markets, value to the customer (which Porter calls
buyer value) can usually be quantified and described in economic
terms. A manufacturer might pay more for a piece of machinery
because, compared with lower-priced alternatives, it will produce off-
setting labor costs that exceed the higher price.
With consumers, buyer value may also have an “economic” compo-
nent. For example, a consumer will pay more for prewashed salad in
order to save time. But rarely do consumers actually figure out what
Competitive Advantage 7
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they are paying for convenience, in the way a business customer
would. (I once calculated, for example, that consumers were effec-
tively paying well over $100 an hour for the unskilled labor involved
in grating cheese.)
A consumer’s WTP is more likely to have an emotional or intangi-
ble dimension, whether it is the trust engendered by an established
brand or the status associated with owning the latest electronic
gadget. Automakers are betting that consumers will pay a price pre-
mium for hybrid cars that well exceeds their potential savings from
lower fuel costs. Clearly, noneconomic factors are at work in this
calculation.
The same is true in a small but growing corner of the food business.
Why are consumers increasingly willing to pay price premiums of
three or four hundred percent for what has long been a basic com-
modity, a carton of eggs? There are a variety of explanations, all of
them related to a growing awareness of how eggs are produced on fac-
tory farms. For the health-conscious customer, the added value is food
safety. For the farm-to-table enthusiast, it’s better taste. For the animal
ethicist, it’s the humane treatment of the hens that lay the eggs.
The ability to command a higher price is the essence of
differentiation, a term Porter uses in this somewhat idiosyncratic way.
Most people hear the word and immediately think “different,” but
they might apply that difference to cost as well as to price. For exam-
ple, “Ryanair’s low costs differentiate it from other airlines.” Mar-
keters have their own definition of differentiation: it’s the process of
establishing in customers’ minds how one product differs from oth-
ers. Two brands of yogurt may sell for the same price, but you’re told
that Brand A has “50 percent fewer calories.”
Porter is after something different. He is focused on tracking down
the root causes of superior profitability. He is also trying to encourage
more precise and rigorous thinking by underscoring the distinction
UNDERSTANDING MICHAEL PORTER8
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between price effects and cost effects. For Porter, then, differentiation
refers to the ability to charge a higher relative price. My advice here:
Don’t get hung up on the language, as long as you don’t get sloppy about
the underlying distinction. Remind yourself that the goal of strategy is
superior profitability and that one of its two possible components is rela-
tive price—that is, you are able to charge more than your rivals charge.
Relative Cost
The second component of superior profitability is relative cost—that
is, you manage somehow to produce at lower cost than your rivals. To
do so, you have to find more efficient ways to create, produce, deliver,
sell, and support your product or service. Your cost advantage might
come from lower operating costs or from using capital more effi-
ciently (including working capital), or both.
Dell Inc.’s low relative costs up through the early 2000s came from
both sources. Vertically integrated rivals, such as Hewlett-Packard,
designed and manufactured their own components, built computers
to inventory, and then sold them through resellers. Dell sold direct,
building computers to customer orders using outsourced components
and a tightly managed supply chain. These competing approaches had
very different cost and investment profiles. Dell’s model required little
capital since the company did not design or make components, nor
did it carry much inventory. In the late 1990s, Dell had a substantial
advantage in days of inventory carried. Because component costs were
then dropping so fast, buying components weeks later, as Dell effec-
tively did, translated into lower relative costs per PC. And Dell’s cus-
tomers actually paid for their PCs before Dell had to pay its suppliers.
Most companies have to finance the working capital they need to run
their business. Dell’s strategy resulted in negative working capital,
which further enhanced Dell’s cost advantage.
Competitive Advantage 9
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Sustainable cost advantages normally involve many parts of the com-
pany, not just one function or technology. Successful cost leaders multi-
ply their cost advantages. They are not just “low-cost producers”—a
commonly used phrase that implies that cost advantages come only
from the production area. Typically, the culture of low cost permeates
the entire company, as it does with companies as diverse as Vanguard
(financial services), IKEA (home furnishings), Teva (generic drugs),
Walmart (discount retailing), and Nucor (steel manufacture). Not
only has Nucor historically achieved cost advantages in production,
for example, but for years it ran a multibillion-dollar company out of a
corporate headquarters about the size of a dentist’s office. The “exec-
utive dining room” was the deli across the street.
The big idea here is this: strategy choices aim to shift relative price
or relative cost in a company’s favor. Ultimately, of course, it’s the
spread between the two that matters: any strategy must result in a
favorable relationship between relative price and relative cost. A dis-
tinct strategy will produce its own unique structure. One strategy
might, for example, result in 20 percent higher costs but 35 percent
higher price. Companies such as Apple or BMW lean in that direction.
Another strategy might lead to 10 percent lower costs and 5 percent
lower price. Companies such as IKEA and Southwest have chosen this
kind of structure. Where the net result of the configuration is positive,
the strategy has, by definition, created competitive advantage. For
Porter, thinking in such precise, quantifiable terms is essential because
it ensures that strategy is economically grounded and fact based.
Strategy choices aim to shift relative price
or relative cost in a company’s favor.
The same big idea applies to nonprofits as well. Remember, com-
petitive advantage is fundamentally about superior value creation,
UNDERSTANDING MICHAEL PORTER10
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