Portfolio manager Robert G. Hagstrom Jr. has spent more than three years immersed in the money-making tenets and strategies of famed investor Warren E. Buffett.

In 1994 he wrote a best-selling book, "The Warren Buffett Way," and in 1995 he set up Focus Trust Fund, which mimics Mr. Buffett's wildly successful investment vehicle, Berkshire Hathaway Inc.

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