It may sound like a small improvement but he just had very highly-paid insurance salesmen and they were paid as long as people kept their policy.

这听起来似乎是一个小进步,他只是高薪聘用了一些推销人员,他们只要能保住客户就能获得高额回报

耶鲁公开课 - 金融市场课程节选