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Andrew Lo: Finding the Perfect Portfolio--a ‘Never-Ending Journey’

The Long View

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The Power of Beta

Bob Greene: Bill Sharp taught us to think about risk in a very different way from Markowitz. His capital asset pricing model gave us this distinction between systematic and idiosyncratic risk, he says. What do you think is today's CAPM that is so counter to conventional wisdom that it hasn't caught on? Greene: Some of the work that I've been doing on incorporating principles of evolutionary theory to financial markets has not yet caught on.

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