If you're a dealer, you've got to keep your bid-ask at market; otherwise, you'll get only one side or the other, right?

如果你是中间商,你的出价必须与市场一致,否则就只能拆东补西

耶鲁公开课 - 金融市场课程节选

I want to talk about the stock market today and I thought I would keep it more or less basic because I think-- I want to emphasize basic concepts.

今天我想讲一些股票市场的内容,我想多讲些基础的内容,因为我认为基本概念很重要

耶鲁公开课 - 金融市场课程节选