In Japan, the quirky economic predictor is about hair, not hemlines. Tokyo's Nikkei Business Daily recently ran statistics purporting to show that shorter hair signals trouble. The data come from 20 years of surveys by Kao, Japan's biggest household products maker. In the fat years leading up to 1990, the Nikkei daily reports, 60% of women polled in Tokyo and Osaka wore their hair "long" or "semi-long." In 1997, with growth flagging, short or medium cuts appeared.
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