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Abstract Based on the perspective of product quality, this paper explores the question that how online product reviews and brand affect product sales together in Group-buying websites. The results demonstrate that: product distribution deviation imposes a significant negative impact on product sales, but brand can weaken the negative impact; product ratings and reviews number strength the negative effect of product distribution deviation on sales; brand strength has a positive interaction effect with the valence of reviews in terms of their effect on sales .
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Received: 14 January 2015
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2016, Vol. 13 
