Japanese stock market swings sharply on changing economic concerns

Japan's Nikkei stock average experienced several days of large swings, dropping sharply at times. The index fell over 1,800 points at one point to around 53,400 yen, and closed down 1,866 points at 53,372 yen on one day.

The moves were linked to shifting investor concerns. Initially, stocks fell as expectations for U.S. interest rate cuts faded. Later, stocks rebounded when worries about high oil prices eased, with the Nikkei rising over 1,200 points. However, stocks fell again as tensions in the Middle East, including concerns over Iran, pushed oil prices higher and renewed fears about the economic impact.