By not collecting sales tax, Internet retailers such as Amazon had a real price advantage over California's small businesses, such as booksellers, which have a physical presence in the state.

如果免征消费税，在加利福尼亚州，像亚马逊这类的网络零售商与拥有实体店的其它小型企业例如书店相比，确实存在价格优势。

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Amazon can verify the identity because it has the user's credit card information, a major advantage for that company.

亚马逊有用户的信用卡信息，所以可以核实用户的身份，对这家公司而言，这是一个主要的优势。

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The only advantage Amazon has is the quality of its store.

亚马逊唯一的优势在于其商店的质量。

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Amazon says most of its more controversial works end up on its site through the Amazon Advantage program, which lets small independent publishers sell their wares on the site.

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But it does not give Amazon any advantage over other on-line retailers, who by also using Ingram immediately have access to a similar range of books.

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He adds that his study finds that if the Amazon sales tax advantage goes away, Amazon Prime members would pay a modest premium to Wal-Mart store prices and about the same prices as Target customers.

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