TOKYO -- The strength of Japan's stock market and the weakness of its currency are feeding off each other in a way that is different from past rallies and could widen movements on both sides.
International investors' forex hedging pushes currency down when shares rise

Japanese stocks are cruising at their highest levels in 33 years. (Photo by Hirofumi Yamamoto)
TOKYO -- The strength of Japan's stock market and the weakness of its currency are feeding off each other in a way that is different from past rallies and could widen movements on both sides.