TOKYO -- When the yen weakens, the stock market rallies. This long-held rule of thumb no longer applies as Japan is not the export powerhouse it once was.
Japan's share in global exports has halved since 1998 as production moves offshore

High-value-added exports like cars tend not to decline in price when the yen weakens. (Photo by Yukihiro Takefuta)
TOKYO -- When the yen weakens, the stock market rallies. This long-held rule of thumb no longer applies as Japan is not the export powerhouse it once was.