Amazon bans 'incentivised' reviews over lack of impartiality
by Alex Hern from Technology | The Guardian on (#1WXPM)
Evidence shows reviewers awarded higher star ratings to products that were discounted in exchange for a review
Amazon has banned "incentivised reviews" after evidence suggested writers typically awarded almost half a star extra compared with reviews where the reviewer paid for the product themselves.
Incentivised reviews involved companies giving big discounts to reviewers on products, although the reviews were still meant to be impartial. Amazon operates its own incentivised reviews programme, Vine, which will continue.
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