ECONOMIES OF DENSITY IN E-COMMERCE: NATIONAL …

sales as of 2016.2 Amazon.com, henceforth Amazon, is a key contributor of this growth, with net sales increasing from $10.7 billion in 2006 to $107 billion in 2015.3 Amazon’s rise has been accompanied by a substantial increase in concentration in online retail, as Figure 1 illustrates. ... accessed on 1/12/2017. ................
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