The Effects of Positive and Negative Online Customer Reviews: Do Brand Strength and Category Maturity Matter?

Research has shown brand equity to moderate the relationship between online customer reviews (OCRs) and sales in both the emerging Blu-ray and mature DVD player categories. Positive (negative) OCRs increase (decrease) the sales of models of weak brands (i.e., brands without significant positive brand equity). In contrast, OCRs have no significant impact on the sales of the models of strong brands, although these models do receive a significant sales boost from their greater brand equity. Higher sales lead to a larger number of positive OCRs, and increased positive OCRs aid a brand's transition from weak to strong. This creates a positive feedback loop between sales and positive OCRs for models of weak brands that not only helps their sales but also increases overall brand equity, benefiting all models of the brand. In contrast to the view that brands matter less in the presence of OCRs, we find that OCRs matter less in the presence of strong brands. Positive OCRs function differently than marketing communications in that their effect is greater for weak brands.