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30-second takeaway
Growth creates value only when the economics of the required reinvestment and risk justify the price paid.
Learning objective
What you should be able to explain.
Connect return on new capital, reinvestment, growth and discounting without assuming that faster sales automatically deserve a higher share price.
Why this matters
A fast-growing business can consume funding, dilute owners or earn weak returns. Understanding the capital needed for growth helps distinguish total expansion from value creation per share.
Vocabulary first
ROIC: defined after-tax operating return on invested capital. Cost of capital: required return under a stated risk framework. Reinvestment: resources committed to maintain or expand the business.
- Capital required for growth
- Return versus the risk hurdle
- Price versus achievable cash flows
Demand growth can require factories, inventory, research, customer acquisition and working capital.
Under a simple economic-profit model, new capital earns after-tax operating returns and must also compensate the capital providers for risk.
A durable, profitable business can still offer disappointing returns if its price already assumes unusually favorable growth and margins.
Follow the mechanism from left to right; each step adds context for the next.
Ask what funds the growth
Demand growth can require factories, inventory, research, customer acquisition and working capital. Some spending is expensed while other spending creates recognized assets. Identify the expected additional cash flows and the capital tied up to obtain them. A growth percentage without this funding bridge is not enough for valuation.
Compare incremental returns with their hurdle
Under a simple economic-profit model, new capital earns after-tax operating returns and must also compensate the capital providers for risk. A positive expected spread above the stated cost of capital can support value; a negative spread can destroy value even while sales rise. Estimated returns and the hurdle are uncertain rather than observable guarantees.
Separate good economics from a good price
A durable, profitable business can still offer disappointing returns if its price already assumes unusually favorable growth and margins. Discount future cash flows consistently with financing and risk. Test several assumptions, including slower demand, weaker returns and dilution, rather than extrapolating a recent growth rate indefinitely.
Apply the concept.
Hypothetical new investment 100M. Project A is expected to produce 15M of annual after-tax operating profit; project B produces 6M. With a stated 10% capital hurdle, annual economic profit is 15 − 10 = +5M for A and 6 − 10 = −4M for B. This annual comparison omits timing, terminal value and project life; it is a teaching lens, not a complete NPV valuation.
Where reasoning breaks down.
Growth and value are not synonyms. A higher expected growth rate requires investigation of reinvestment, competitive durability, funding and the price already paid for those expectations.
Can you explain the idea?
Try recalling it in your own words, then compare your reasoning with the lesson explanation.
Try the recall practice →Counterexample: when the shortcut fails
Sales rise 30% but diluted shares rise 40%. Sales per share changes by 1.30/1.40 − 1 = −7.14%. Sales growth alone therefore does not establish improvement for each existing share, and sales per share is still not a measure of shareholder value.
Risk and limits of this model
ROIC definitions, intangible investment treatment, acquisition accounting and forecast uncertainty affect this simplified comparison. A single expected spread cannot establish timing or fair value.
Put the concept into practice
From an annual report, identify how management funds growth. Compare capital spending, working capital, share issuance and an explicitly defined operating return over several periods.
Go one level deeper
Try a different set of numbers
What is annual economic profit on 80M of new capital earning 12% with a 9% hurdle?
80 × (0.12 − 0.09) = 2.4M, under the stated annual after-tax return and hurdle assumptions.
MAKE THE IDEA YOURS
Explain it. Try it. Come back to it.
Growth creates value only when the economics of the required reinvestment and risk justify the price paid.
TRY TO RECALL BEFORE YOU REVEAL
Why can a strong business still be a disappointing investment?
Apply it to a second question
What is annual economic profit on 80M of new capital earning 12% with a 9% hurdle?
Compare your reasoning
80 × (0.12 − 0.09) = 2.4M, under the stated annual after-tax return and hurdle assumptions.
Record only what you have actually worked through. These actions do not complete a foundation stage or certify investing ability.
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What remains unclear? Give feedback about this lesson
Use this as a foundation, then verify current rules and product details with primary sources and regulated providers before acting.
Primary sources and further reading
Verify the current details.
Editorial review: 2026-10-14. The examples are hypothetical unless a named historical case is stated. Rules and product details can change; use the relevant source and actual instrument terms.
Connect the concept
Go from explanation to application.
Continue with a genuinely related definition and educational calculator.
Go deeper in My Market Book
Connect valuation & expectations with the broader business, pricing and risk framework.
Explore the visual book