And the economy has been hit hard by the fall in the price of diamonds which make up one-third of its gross domestic product.

VOA: standard.2009.10.19

They'll buy stocks because they think price is going to go up and make them a lot of money.

购买股票,是因为他们认为股价会上升,从而可以赚很多钱

耶鲁公开课 - 金融市场课程节选