Similarly, Jenny Aker of the University of California at Berkeley analysed grain markets in Niger to see how the phasing-in of mobile-phone coverage between 2001 and 2006 affected prices.

类似地，加州大学伯克利分校的Jenny Aker分析了尼日尔的谷物市场，研究2001至2006年手机网络的覆盖对价格造成的影响。

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Similarly, Jenny Aker of the University of California at Berkeley analysed grain markets in Niger to see how the phasing-in of mobile-phone coverage between 2001 and 2006 affected prices.

类似地，加州大学伯克利分校的Jenny Aker分析了尼日尔的谷物市场，研究2001至2006年手机网络的覆盖对价格造成的影响。

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