Mayzlin, Dina; Dover, Yaniv; Chevalier, Judith - In: American Economic Review 104 (2014) 8, pp. 2421-55
Firms' incentives to manufacture biased user reviews impede review usefulness. We examine the differences in reviews for a given hotel between two sites: Expedia.com (only a customer can post a review) and TripAdvisor.com (anyone can post). We argue that the net gains from promotional reviewing...