Has some moat but limited width
Brand, patents, franchises
Some moat indicators present
“Coca-Cola's brand is its most valuable asset. Consumers worldwide reach for Coke regardless of price, giving it extraordinary pricing power.”
Switching suppliers is costly for customers
Extremely high switching costs
“In insurance, once a customer has coverage, switching to another provider is cumbersome. This gives Berkshire Hathaway's insurance operations a significant advantage.”
Product becomes more valuable as users grow
No network effect, single-sided market
“Some businesses benefit from network effects—the more users they have, the more valuable they become. This creates a powerful barrier to entry.”
Low cost from economies of scale or unique processes
Has durable cost advantages
“Nebraska Furniture Mart's ability to sell at prices competitors can't match comes from relentless cost control and massive volume.”
Government-granted exclusive operating rights
Some moat indicators present
“Our regulated utility businesses benefit from government-granted monopolies. Competition is limited by the nature of the industry.”
AMD
ADVANCED MICRO DEVICES INC
References from Buffett's 60 years of letters
“Coca-Cola's brand is its most valuable asset. Consumers worldwide reach for Coke regardless of price, giving it extraordinary pricing power.”
“In insurance, once a customer has coverage, switching to another provider is cumbersome. This gives Berkshire Hathaway's insurance operations a significant advantage.”
“Some businesses benefit from network effects—the more users they have, the more valuable they become. This creates a powerful barrier to entry.”
“Nebraska Furniture Mart's ability to sell at prices competitors can't match comes from relentless cost control and massive volume.”
“Our regulated utility businesses benefit from government-granted monopolies. Competition is limited by the nature of the industry.”
🎯 Core Principle
"The key economic moat — the awesome waters around the castle — is the decisive factor that allows a company to maintain its competitive advantage."
— Warren Buffett, 1986 Letter
→ Read Full Letter