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These blog entries consist of reviews of the performance of individual gurus based on information freely available on the web.

Warren Buffett’s Track Record: Luck or Skill?

In their August 2005 paper entitled “Imitation is the Sincerest Form of Flattery: Warren Buffett and Berkshire Hathaway”, Gerald Martin and John Puthenpurackal rigorously examine various possible explanations for Berkshire Hathaway’s superior investment performance. Is it luck? Is it reward-for-risk? Is it outstanding stock-picking skill? Using information on 261 common equity investments from Berkshire Hathaway’s SEC filings and market databases for 1980-2003, they conclude that: Keep Reading

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