德国的啤酒商发现,夏天气温每升高1摄氏度,就会增加230万瓶的啤酒销量; 日本人发现,夏季30摄氏度以上的气温,每多一天,空调的销量便增加4万台; 一个中长期天气预报常常可以决定芝加哥商品交易所农产品期货的价格;日本股票市场的价格浮动与太平洋水温保持着同步的变化;香港恒生指数的日平均回报率随乌云覆盖量增加而逐渐下降…… German beermakers found that for every 1 degree Celsius increase in summer temperatures, beer sales increased by 2.3 million bottles. Japanese people found that air-conditioning sales increased by 40,000 units for more than 30 degrees Celsius in summer, Long-term weather forecasts often determine the price of commodity futures on the Chicago Mercantile Exchange; the price fluctuations in the Japanese stock market keep pace with the Pacific’s temperature; the average daily return of Hong Kong’s Hang Seng Index declines with increasing cloud cover ...