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.

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Similarly, Jenny Aker of the University of California at Berkeley carried out an analysis of grain markets in Niger, published in 2008, to see how the phasing-in of mobile-phone coverage between 2001 and 2006 affected grain prices.

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