From 1983 to the present as you just said, the economy has a long period of smooth, robust expansion interrupted by two very mild recessions.

第二时期是从1983年至今，正如你所说，经济长时间处于,平稳强健的发展状态,而只出现了两次轻度衰退。

斯坦福公开课 - 经济学课程节选

You can see the different points-- I've calculated this using data from 1983 until 2006-- and I computed all of the inputs to those equations that we just saw.

你可以观察不同的点-,我用从1983年到2006年的数据-,代入我们刚教授的等式,进行了计算。

耶鲁公开课 - 金融市场课程节选

And now maybe...now I've just heard that maybe one of those two recessions wasn't even a classic recession at all So the question is 1890 to 1945 on the one hand, 1983 to the present on the other, does that tell us that ? we've gotten better at government interventions?

那么现在也许。。。就你们刚才所说,其中一次所谓的衰退也许,根本不能算是典型的经济衰退了,那么问题在于，从1890年到1945年，以及1983年至今的经济状况，是否说明,政府对经济的干预是有利的？

斯坦福公开课 - 经济学课程节选

I was using only from 1983 to the present.

我用的数据只是从1983年到现在。

耶鲁公开课 - 金融市场课程节选

I computed the returns on the stocks, bonds, and oil for every year from 1983 and I computed the average returns, which I take as the expected returns, I took the standard deviations, and I took the covariance.

我计算了从1983年以来每年的股票,债券和石油的收益，从而得出平均收益率，这些平均收益率作为预期收益率，然后算得标准差及协方差。

耶鲁公开课 - 金融市场课程节选