Corporate Strategy and the Economic Moat
A firm’s strategy is how it positions itself to earn returns above its cost of capital for longer than rivals can compete them away. The durable source of that advantage is the economic moat, a structural barrier such as a strong brand, network effects, switching costs, cost advantages, or efficient scale. Blue Ocean Strategy offers a different route. Rather than fight in a crowded, bloody "red ocean", a firm creates uncontested market space and makes the competition irrelevant. For an investor, the moat is what protects future cash flows, so judging its width and durability is central to valuation.
Why it matters
Two companies can earn the same profit today, yet one keeps it for a decade while the other watches competitors copy it within a year. The moat is what keeps the profit defended. Warren Buffett pictures a castle with a wide moat around it, the wider and deeper the better. Blue Ocean adds a twist. The surest way to avoid competition is to compete where no one else is, by redefining the product so price and value both move in your favour.
Formulas
Worked examples
A software firm earns a return on invested capital of 22 percent against a cost of capital of 9 percent, and has held that gap for eight years. What does this say about its moat?
The 13 percentage point spread, sustained for eight years, is strong evidence of a real economic moat. In a competitive market without barriers, rivals would have entered and compressed that return toward 9 percent. The persistence points to something structural, plausibly high switching costs or network effects, which an analyst would then verify qualitatively before trusting it to continue.
Common mistakes
- ✗A great product is the same thing as a moat. A great product invites imitation. A moat is the structural reason rivals cannot easily copy or undercut the firm.
- ✗High current profit proves a wide moat. Profit can be a temporary windfall. Only profit that survives competitive attack over time reveals a genuine moat.
- ✗Blue Ocean Strategy means simply lowering prices. Blue Ocean reshapes the value-cost frontier, often raising buyer value while cutting cost, rather than winning a price war in the existing market.
- ✗A moat, once built, is permanent. Moats erode. Technology, deregulation and new entrants can fill in a moat, so durability must be reassessed continually.
Revision bullets
- •Strategy aims to earn returns above the cost of capital for longer than rivals
- •The economic moat is the structural source of durable advantage
- •Moat sources: brand, network effects, switching costs, cost advantage, scale
- •Blue Ocean creates uncontested space rather than fighting in a red ocean
- •A persistent ROIC above WACC is the financial signature of a moat
- •Moats erode, so durability must be reassessed over time
Quick check
An economic moat is best described as
The core idea of Blue Ocean Strategy is to
Connected topics
Sources
- Brailsford, Heaney & Bilson (2015), Ch. 12Brailsford, T., Heaney, R., & Bilson, C. Investments: Concepts and Applications. 5th ed. Cengage Learning Australia, 2015.Covers qualitative company analysis and competitive position within fundamental analysis.
- Kim & Mauborgne (2015)Kim, W. C., & Mauborgne, R. Blue Ocean Strategy: How to Create Uncontested Market Space and Make the Competition Irrelevant. Expanded ed. Harvard Business Review Press, 2015.Original statement of the red-ocean versus blue-ocean strategic framework.