In personal digital gadgets, for example, 23 percent of respondents said they had bought such goods for the first time.

个人数字产品方面，23%的人说他们是首次购买该类产品。

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This data set, created by shoppers themselves using in-store scanners, records the type of goods bought by various income groups between 1994 and 2005, as well as the prices paid for them.

这套由消费者自己利用商店里扫描机所产生的数据记录了从1994到2005年不同的消费群体所购买商品的种类以及他们为此所付出的价格。

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Big retailers, in turn, complain that suppliers impose geographical barriers: identical goods produced in the same factory must often be bought at different prices to be sold in different countries.

相反，大型零售商抱怨供应商设置地理障碍：必须以不同价格购买同一工厂生产的卖到不同国家的同一货物。

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The cost of goods was lower when bought in large amounts.

VOA: special.2010.04.15

One study found that 78% of foreigners selling goods in South Africa also bought South African goods to sell back home.

ECONOMIST: A ticket to prosperity

Over the year, the amount of goods bought in Scotland rose by 2%, while shoppers spent 2.5% more.

BBC: Scottish shop sales rise in first quarter of 2013

Big data has become the digital currency in how goods are being bought and sold online, and this vision has provided engineers extraordinary new learning opportunities, not to mention huge data challenges.

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