The first signs that other, more psychological, factors might be at play emerged in the middle of 1927 with the Fed easing after the Long Island meeting. The dynamic between market prices and earnings seemed to change. During the second half of the year, despite a weakening in profits, the Dow leaped from 150 to around 200, a rise of about 30 percent. It was still not clear that this was a bubble, for it was possible to argue that the fall in earnings was temporary—a consequence of the modest recession associated with Ford’s shutdown to retool for the change from the Model T to the Model A—and
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