Judging by review quality

Matthew Johnson directs my attention to the following:

In our recent (award-winning) WWW2011 paper “Towards a Theory Model for Product Search”, we noticed that demand for a hotel increases if the online reviews on TripAdvisor and Travelocity are well-written, without spelling errors; this holds no matter if the review is positive or negative. In our TKDE paper “Estimating the Helpfulness and Economic Impact of Product Reviews: Mining Text and Reviewer Characteristics“, we observed similar trends for products sold and reviewed on Amazon.com.