I managed to find price indexes for Norway and Netherlands going back to 1890 and compared that with the U.S.

我找到了挪威和荷兰1890年的,价格指数数据,和当时的美国作比较

耶鲁公开课 - 金融市场课程节选

This refers to random variables that have fat-tailed distributions-- random variables that occasionally give you really big outcomes.

这就表示,服从长尾分布的随机变量,这些数据出现极端值的概率比较大

耶鲁公开课 - 金融市场课程节选

So in fact, it is the case, if you look at data, and by the way, that's the way I ended up setting a lot of these parameters and playing with it, was comparing what my simulation said to historical stock data.

所以实际上，在这个例子中，如果你看到数据，顺便说一下，这就是我设置很多变量,然后编程的方式，也就是把我的仿真程序得到的结果,和历史股票数据进行比较。

麻省理工公开课 - 计算机科学及编程导论课程节选