In November of 1998 Amartya Sen, winner of the 1998 Nobel Prize for Economics, delivered the 1998 Romanes Lecture before the University of Oxford. The subject was social identity and its role and implications.
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.