This is the present value of $1 in one time period, which I'm taking to be a year.

这就是一美元在一段时期内的现值,我只是将一美元持有一年

耶鲁公开课 - 金融市场课程节选

Over the boom period, we've been seeing a gradual uptrend; just as loan to value ratios were only 60% in the 1920s, now they're up to 90% or 100%.

在繁荣时期可看到一个逐渐上升趋势,上世纪20年代贷款价值比率只有60%,现在飞升至90%或100%

耶鲁公开课 - 金融市场课程节选

I bought a number of two-period bonds such that the value of my purchase exactly equals the proceeds that I get from shorting the one period bond, so I've made a zero wealth transaction.

我买入了一定数量的两年期债券,其成本刚好等于我卖空,一单位一年期债券获得的资金,我做的是零成本交易

耶鲁公开课 - 金融市场课程节选

Generally, if it pays c dollars for every period, the present value is c/r.

推广开来,如果在每段时期内支付c美元,那么它的现值就是c/r

耶鲁公开课 - 金融市场课程节选