Unlimited leverage comes automatically with an option exchange. And derivative trading which made the option exchanges look like a benign event.

期权交易与无限杠杆率是与生俱来的,而且金融衍生品交易使得,期权交易看似有益。

斯坦福公开课 - 经济学课程节选

One is that -there's a literature in finance about options and stock price performance, which goes back ten years, that shows that something is not quite right with the way companies issue options.

其中之一是,有一部关于期权与股票价格表现,的金融文献,讲述的是十年前,关于公司发行期权的,一些不太正确的做法

耶鲁公开课 - 金融市场课程节选