The numbers for September 23: Zeroed out

9

The percentage increase in revenue a company can get when it receives one extra Yelp star, according to a Harvard study. Yelp and other online reviews carry a lot of weight. That’s why regulators in New York have started to crack down on fake reviews. (Michael Luca/Harvard)

0

The amount of fur that can now be sold in West Hollywood, Calif. The city has just put into place one of the first bans on fur sales in the country. But is the move just symbolic? (Marketplace)