It's a new form of monetary policya new invention which we've been doing only for a matter of months now.

这是一种新的货币政策形式一个新的发明,我们刚刚采用了几个月而已。

耶鲁公开课 - 金融市场课程节选

One form of monetary policy that the Fed does is they can change these reserve requirements.

美联储制定的一种货币政策形式是,他们可以改变法定准备金率。

耶鲁公开课 - 金融市场课程节选