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Warren Buffett's 'moat' strategy broken down by Columbia professor - Business Insider

Warren Buffett's 'moat' strategy broken down by Columbia professor - Business Insider: This story is exclusively available to BI Prime members. Thank you for being a member, Igor!



Bruce Greenwald — the Robert Heilbrunn professor emeritus of finance and asset management at Columbia Business School — shared a simple calculation for evaluating the extent of a company's competitive advantage.

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