Angela Sutan is a Professor at the Groupe ESC Dijon Bourgogne. She manage the LESSAC: "Laboratoire d'Expérimentation en Sciences Sociales et Analyse des Comportements". See the web page
Abstract of her communication: "We conducted an experiment on the informational efficiency of the review process by analyzing the impact on consumer welfare of two types of reviewers, those who are “interested” and benefit from the sale of the product and those “disinterested”, who do nBot have a stake in the product. Our results confirm the informative value of disinterested reviews while calling our attention to the possibility of effective manipulation of the review process by interested parties."