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Who believes market efficiency?

Rortybomb

This is fascinating. Finance Professor and creator of the Efficient Markets Hypothesis Eugene Fama:

The premise of the Fox book [“The Myth of the Rational Market”] is that our current economic problems are largely due to blind acceptance of the efficient markets hypothesis (EMH)…

The book is fun reading, but its main premise is fantasy. Most investing is done by active managers who don’t believe markets are efficient. For example, despite my taunts of the last 45 years about the poor performance of active managers, about 80% of mutual fund wealth is actively managed. Hedge funds, private equity, and other alternative asset classes, which have attracted big fund inflows in recent years, are built on the proposition that markets are inefficient. The recent problems of commercial and investment banks trace mostly to their trading desks and their proprietary portfolios, and these are always built on the assumption that markets…

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