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    August 21

    谁出问题了?

      今天Economist.com贴出了最新的Big Mac Index,这个UBS给出的统计数据看上去似乎合情合理,但是仔细算一下却发现了漏洞。

      如图,这统计的数据是今年3月份,根据Economics的原文,Chicago,Toronto和Tokyo都是12分钟挣来一个Big Mac,上海读图大约是25~30分钟左右,全球标准是Singapore的大约38分钟。
     
      在国内,从Mc'Donald的官方点餐券上看到标准定价是14RMB一个,那么按照这个标准来算,上海人民的每小时平均收入大约是60/25*14=33.6RMB ~~ 60/30*14=28RMB之间,放大到月收入为5913.6RMB ~~ 4928RMB -- 按照每天8小时,每月22天计算。上海人民有这么高的收入?有趣,所以我就找东京的数据来验证了一下。可惜,Mc'Donald JP并不提供价格查询,按照多方搜索得到的价格信息,东京的Big Mac大约是320日元一个,那么算下来大约会是281600日元,这个看上去似乎就准确一些了。
     
      那么究竟是哪里出问题了?究竟是上海人民的平均月收入达到了4928RMB还是UBS的统计出了问题?谁来解答一下。

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    Wek Shiwrote:
    补充,实际上,这个文章的题目是An alternative Big Mac index,也没有说明数据的实际来源。也许是根据6月16号发布的The Big Mac Index得出,那上面统计的价格是上海12.5RMB,东京320日元,但没有相应的文章指出各个城市的平均收入。事实上分歧点也就在这里,究竟这个平均收入是哪里得到的..未知
    Aug. 22

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