The Moat Is the Core of Business Value
A business with a durable competitive advantage can defend against competition and maintain excess returns long-term; the moat is the most important criterion for stock selection.
Source: Berkshire Hathaway Annual Letters 1986-2023 (Warren Buffett, Berkshire Hathaway Inc., Omaha NE) / The Warren Buffett Way by Robert G. Hagstrom, 1994
