1975-12-02T00:00:00Z (GMT) by Allan Meltzer

From the opening on October 14, 1987 through the market close on October 19, major indexes of market valuation in the United States declined by 30 percent or more. On October 20, the major indexes recovered part of their loss. For the next four months, these indexes remained within a narrow range, though they were often subject to relatively large daily changes.