A pedestrian walks past a board displaying the closing figure of the Nikkei Stock Average in Tokyo on Friday. All of the major indexes are now in what the markets call a correction, and stocks also were down in Asia and Europe.

A pedestrian walks past a board displaying the closing figure of the Nikkei Stock Average in Tokyo on Friday. All of the major indexes are now in what the markets call a correction, and stocks also were down in Asia and Europe.