Overview
Anyone can describe what a company sells. Reading a business means understanding how it actually makes money and why competitors can't simply copy it — the model and the moat.
This guide gives you a repeatable lens you can point at any company.
The steps
Find the business model
Ask how it really makes money. Match it to a pattern like subscription, marketplace, membership or platform ecosystem.
Identify the moat
Name the durable advantage. Is it scale economies, switching costs, network economies, or counter-positioning?
Judge the industry
Use Porter's Five Forces to see whether the industry itself is structurally profitable or brutal.
Trace where value is created
Run a value chain analysis to locate the specific activities that generate the advantage.
Study a worked example
See it all together in Costco (membership + counter-positioning) or NVIDIA (network economies + platform).
Think about durability
Ask what could erode the moat — use second-order thinking on the threats.
Key takeaways
- The product is the surface; the model and moat are the substance.
- Always ask why a competitor can't just copy this.
- Industry structure can matter as much as company quality.
- A moat is only useful if it's durable — ask what could erode it.
Frequently asked questions
What's the difference between a business model and a moat?
The model is how a company makes money; the moat is why it can keep making it despite competition. You need to read both.
Where should I start?
With how the company actually earns — the revenue model — then work outward to the moat and the industry structure.