大田金業讲故事：墨西哥牧童免费喝啤酒
从前，墨西哥与美国边境存在一种特殊的货币兑换情形：在墨西哥境内，1美元值墨西哥比索90分，而在美国境内，1个墨西哥比索（100分）只值90美分，即1美元=1.11比索。
一天一个牧童先在一家墨西哥酒吧喝了一杯啤酒，价格是10个墨西哥比索分，于是他用余下的90个墨西哥比索分换了1美元，然后又走过边境进了一家美国酒吧，喝了一杯啤酒，价格是10美分，他用余下的90美分又换成1个墨西哥比索。如此这般，牧童每天都愉快地喝着啤酒，而口袋里的1个比索却始终没有减少。
本文来源： 大田环球贵金属
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