One way to make capital available for new loans is to sell mortgage-backed securities.

VOA: special.2009.09.04

We did have a large,short position in subprime mortgage-backed securities, which has paid off enormously for the University and really helped protect assets in the past nine months or a year.

我们确实曾持有很多,次级抵押担保证券的空头,它们为耶鲁赚了不少钱,并且在过去的9个月或1年间,为资产保值发挥了实在的作用

耶鲁公开课 - 金融市场课程节选

These mortgages were given out to people that couldn't afford them and today you have what you call subprime mortgages--subprime paper They issued against this paper stuff called mortgage-backed security. They securitized them and these things are all floating around now.

我们发放这些抵押贷款给那些买不起房子的人,所以现在你们看到了一种你们叫做,次级抵押贷款的金融工具--次贷票据,他们把这种票据叫做,有抵押证券，他们把有抵押证券证券化,这些证券现在在市场上被多次交易，广为流通。

耶鲁公开课 - 金融市场课程节选

The central bank also announced that it would purchase up to $750 billion of additional mortgage-backed securities, which lost value with the collapse of the U.S.housing market.

VOA: standard.2009.03.18