Drawing on Warren Buffett's observation that it cannot be a coincidence that a group of investors taught by Benjamin Graham can make above average returns, Mr Mallaby presents original research on the performance of a group of fund managers who worked with Julian Robertson at Tiger Management, and similarly reveals superior returns.

ECONOMIST: Learning and learning

Since then, Tiger has scored some of the most impressive returns on Wall Street, mainly from investing in growth stocks like Apple, Amazon.com, Google and Netflix.

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