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November 2016

Mohammad Anas Wahaj | 23 nov 2016

Research by Prof. Ali Besharat of University of Denver, 'The Effect of Review Valence and Variance on Product Evaluations: An Examination of Intrinsic and Extrinsic Cues' (Other authors - Ryan Langan of University of San Francisco; Sajeev Varki of University of South Florida), explores how the rating and variance in reviews affect the decision process. Researchers find that the nature of products, a product's brand, reviewers' credibility, and the structure of online customer reviews all significantly impact consumer decision-making and, subsequently, a company's bottom line in terms of sales. According to Prof. Besharat, 'In the case of high online review variance, we find that when brand equity is high - Nike for example - then reviewer credibility does not influence consumers' purchase intentions. But when a consensus among reviews exists (low variance), reviewer credibility emerges as a significant diagnostic cue.' Another research by Prof. Ana Babić Rosario of University of Denver, 'The Effect of Electronic Word of Mouth on Sales: A Meta-Analytic Review of Platform, Product and Metric Factors' (Other authors - Francesca Sotgiu of Vrije Universiteit Amsterdam; Kristine De Valck of HEC Paris; Tammo H.A. Bijmolt of University of Groningen), confirms Prof. Besharat's findings and demonstrates that a wide variance in consumer opinions has a detrimental effect on product sales. According to Prof. Rosario, 'The reason why variability of reviews can harm sales more than negativity is that electronic world of mouth, in theory, is a way for consumers to reduce risk and uncertainty, which does not happen when other consumers' feedback is highly inconsistent.' Prof. Rosario's findings should be of interest to product and platform managers, internet and social media monitoring agencies. Read on...

University of Denver News: What Brand and Marketing Managers Need to Know About Online Customer Reviews; How They Influence Purchase Decisions
Author: Amy Jacobson


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