Stick or carrot?

摘要

On May 30th Michael Bloomberg, New York's mayor, proposed a ban on the sale of sugary drinks in sizes larger than 16 ounces (roughly half a litre) at stadiums, restaurants, cinemas and food carts. The ban is meant to reduce obesity. In an interview with the New York Times Mr Bloomberg, channelling his inner action hero, said: "New York is not about wringing your hands; it's about doing something. I think that's what the public wants the mayor to do."