"Although efficient markets people still go around saying there is a "mountain" of evidence supporting their hypothesis, the truth of the matter is that it's a very old mountain that's now eroding rapidly into the sea."

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Seven habits that help produce the anything-but-efficient markets that rule the world. 1. Think short term. 2. Be greedy. 3. Believe in the greater fool 4. Run with the herd. 5. Overgeneralize 6. Be trendy 7. Play with other people's money

— Paul Krugman