Well, builders can sell for a really high price, so they start building a lot of houses.

建造商能以高价将房屋卖出,所以他们广建新房

耶鲁公开课 - 金融市场课程节选

That's what I'll buy today not because I'll derive income off of it, but because it's what people are going to want next week and I'll be able to sell it higher.

意思是我今天要买入什么,并不是因为我希望从中获取收益，而是因为这是人们在下个星期希望买入的,而我将会以更高价卖出。

耶鲁公开课 - 金融市场课程节选