That little semi-religious speech about modeling, I think economists, those of you who are Economics majors you're thinking, yeah, what's the problem?
有一条关于建模的准教训,对于经济学者,你们那些主修经济学的,应该经常问自己,出现什么问题了
And then you have to take History course and course in Statistics for modeling, so.
然后你必须选历史和建模统计学。
You might even go further, you might say modeling it is always going to miss stuff out, so let's just not bother.
你可能会更进一步说,建模的时候总会忽略一些因素,所以干脆也不要建模了
How would you model individual stocks if you believe this hypothesis?
如果你们相信这个,假设你们应该怎样去对每只股票建模呢?
So we try to model how... like what kind of bids they give and
我们就试着建模,怎样……比方说他们投什么标还有
So you really want to think about why we're modeling, what do we get from this exercise?
你们要多问问自己为什么要建模,我们能从这些模型中学到些什么
And let's think about how we're going to build the simulation.
让我们想想,我们怎样进行建模。
So we would model it as a random walk.
所以这里是按照随机漫步的模式进行建模。
So how can we model this kind of thing?
所以我们怎样对这种东西建模呢?
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