Moat (Economic Moat) - Explained
A beginner-friendly explanation of Moat (Economic Moat) in value investing.
Moat (Economic Moat) Explained
The competitive advantage that protects a business from competitors, allowing it to sustain superior returns over long periods.
What It Means for Investors
Why Moats Matter
The margin of safety concept from Graham focused on price — buying below intrinsic value. But Munger helped Buffett realize that a wonderful business bought at a fair price outperforms a mediocre business bought at a cheap price.
The reason: a business with a wide moat can compound at high rates for decades. A commodity business, no matter how cheap, will eventually see its returns competed away.
Types of Moats
1. Intangible Assets
Brand, patents, regulatory licenses, or reputation that competitors cannot easily replicate.
| Company | Moat Type | Example |
|---|---|---|
| coca-cola | Brand | $70B brand value |
| apple | Brand + Ecosystem | iOS lock-in |
| pharmaceutical companies | Patents | 20-year exclusivity |
2. Cost Advantage
Companies that can produce or deliver goods at lower cost than competitors.
- BNSF Railway — Rail is 3x
Key Takeaway
The competitive advantage that protects a business from competitors, allowing it to sustain superior returns over long periods.