Opinion | Do Not Trust That Stranger’s 5-Star Review - The New York Times
►https://www.nytimes.com/2019/05/25/opinion/sunday/five-star-customer-reviews.html
Stars beget sales. According to an often mentioned Harvard Business School working paper that studied restaurant reviews on Yelp, each added star is associated with a 5 percent to 9 percent increase in revenue. Not surprisingly, then, new businesses have sprung up to exploit the rating system to the seller’s or the platform’s advantage.
Finally, it’s hard to know what the stars even mean. Often times, whether it’s a mattress or can opener or an Uber driver, a five-star rating means “nothing disastrous happened,” said Nikhil Garg, a doctoral candidate at Stanford University. A recent study he co-wrote reported that 80 percent of people gave freelancers hired from an online platform five stars. But when he asked people to choose from different words (“terrible,” “mediocre,” “best possible,” etc.), at least half of the freelancers earned the equivalent of a two-, three- or four-star review.
In the case of hotels, said Dr. Cotte, five stars typically means “everything is what I expected.” I’m assuming this is how the Hampton Inn averaged a five-star rating on my recent search for a hotel in Maine, compared to several luxury resorts that rated only a four.
The experts confirmed what I knew, but resisted, all along. If you really want to find the best product or service for your needs, you’ll need to exert some effort. But it’s also worth remembering that if you don’t, it’s no big deal.
As Dr. Salganik explained, even if a system is gamed, the worst product probably won’t end up at the top of your screen for long; assuming there’s a considerable difference in quality among the options, it will eventually be knocked down. But if the products are pretty similar, then yes, it’s possible that the very best one will actually not float to the very top — though that’s no tragedy either. As Barry Schwartz, the author of “The Paradox of Choice,” argues, if everything is essentially the same, then there’s nothing wrong with ending up with a product that’s the second- or third-best of the heap.