This, I think you've gotten from other economics courses-- we have something called diminishing marginal utility.

我认为你们已经从其它的经济学课程中学过了,称为边际收益递减

耶鲁公开课 - 金融市场课程节选

A company has a profit and loss statement and there's something that is called net income, which is the measure of how much the company is making the profits after expenses of the company, called the bottom line.

例如,每家公司都有损益表,还有净利润,净利润指公司收益总额,扣除经济成本,也称为盈亏结算线

耶鲁公开课 - 金融市场课程节选