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Do you have any exams coming up? tinidazole giardia Some have interpreted the financial crisis as an indictment of efficient markets, but that view represents a misunderstanding of Fama's work. In order to reject efficient markets you'd have to believe that, before the crisis, it was possible to predict exactly what was wrong, where, by how much, and at the precisely right time. Even Shiller, who "predicted" the Internet and housing bubbles, hasn't always gotten the timing right. Indeed there were bad practices on Wall Street and many people underestimated the risks they'd taken. But if the bad actors in finance didn't know - and they had a fantastic profit motive to figure it out - how can we expect policymakers and regulators to know better?