I wrote my first book--I already talked about that, Pioneering Portfolio Management--that deals with the challenges that face institutional investors.
我写的第一本书,我已经提到过了,《机构投资的创新之路》,讨论了机构投资者所面临的挑战
.. I computed the efficient portfolio frontier for various-- it's the efficient portfolio frontier using the formula I just gave you.
我计算了来自不同组合有效边界-,这一条有效投资组合边界,就是用刚刚给出的公式算出来的。
You can either have what's called an indexed portfolio, or a managed portfolio.
你可以选择指,数化资产组合,或者代管投资组合。
So, why don't we set up a company that creates a portfolio like that and investors can buy into that portfolio.
那么,为什么我们不设立一家公司,专门创造这样的投资组合,然后投资者们再将这些投资组合买进呢。
What I think the mutual fund industry has turned into, largely, is a stock picking industry, not a portfolio diversification industry.
我认为,共同基金行业在很大程度上,已经演变成选股行业,而非投资组合多样化行业
There's no correlation between them ... and that means that the variance-- and I want to talk about equally-weighted portfolio.
它们之间没有相关性,也就是说。。。方差-,我想讲一下,权重相等的投资组合。
Somebody else might say, well I want to just hold this point, I want to hold the tangency portfolio.
而另外的某些人可能会说,我就想按这个点的比例来持有投资,我想持有切线投资组合。
Just by putting money into a broadly diversified portfolio of stocks you would have gotten 3,077 times your money.
仅仅将钱投资于,一个多样化的普通股组合,你就会获得本金的3077倍
What I have up there on the diagram are calculations I made for the efficient portfolio frontier with three assets.
上面的图形是我已经算好的,三种资产的有效投资组合边界。
It shows the standard deviation of the return on the portfolio as a function of the expected return on the portfolio.
它是投资组合的收益标准差,关于预期收益率的函数图像。
Suppose you could find 10,000 independent assets, then you could drive the uncertainty about the portfolio practically to 0.
假设你能找到一万项相互独立的资产,那么你就可以将这个投资组合的风险,降到几乎为零。
Probably a more important test of the portfolio was what happened around the collapse of the Internet bubble in 2000.
对这个组合更严峻的考验可能是,2000年那场互联网泡沫的破裂
So Yale had a 28% return on its portfolio last year, which was number one of all college endowments.
去年耶鲁基金获得了28%的收益,收益率高居全美高校榜首
This portfolio, the minimum variance portfolio, is 9% oil, 27% stocks, and 64% bonds and most of the--many choices you can make.
这个最小方差的资产配置是9%的石油,27%的股票和64%的债券,而大部分。。。你可以有许多选择。
Now, he's using a much longer sample than I did, so he's not going to get this tangency portfolio that I did.
他的样本跨度比我的要大多了,所以他得出的切线资产组合会和我的不同。
I'm going to start this lecture with a discussion of how one constructs a portfolio and what are the mathematics of it.
首先我想讲讲,怎样建立一个投资组合,以及与其有关的数学问题。
.. You want to get it-- if you keep adding assets, you can do better and better on your portfolio standard deviation.
你想得到-,如果不断增加资产,组合的标准差就会越来越小。
The pink line here is the efficient portfolio frontier when we have only stocks and bonds to invest.
这条粉色曲线就是有效边界,这个投资组合只包括了股票和债券。
I want now to carry that forward into something a little bit more focused on the portfolio problem.
现在从这个基础上拓展一下,更侧重于投资组合方面的问题。
So, if you're a small college with only $20 million in a portfolio you don't come across as a qualified purchaser.
因此,如果是一个,只有2000万资产组合的小学院,是不能通过合格购买者的审核程序的
What I did in this diagram is I computed the efficient portfolio frontier-- now it's the blue line with three assets.
在这张图表中,我计算了有效边界-,蓝色线表示三种资产的组合。
.. I can achieve any combination-- I can achieve any point on that by choosing an allocation of my portfolio.
我可以得到任意组合-,可以任意分配投资组合中,各种投资的比重。
It's the world portfolio, it's everything and we compute the expected return on that portfolio, rm that's rm.
这就产生了世界投资组合,然后我们在此基础上计算出预期收益,所得值就是。
Such a person might pick a point up here and that would be a portfolio with--a leveraged portfolio.
那样的人可能会在这里选一个点来投资,那就是一个有。。。这是个杠杆投资组合。
The overall conclusions are that, with respect to asset allocation, you want to create an equity-oriented diversified portfolio.
总而言之,在资产配置方面,你要创造一个股权导向的多元化投资组合
I showed them the slide that I just showed you, showing the optimal portfolio, and then I looked at the Norwegian Government's position.
我还给他们展示了刚刚给你们放的幻灯片,就是展示最佳投资组合的那张,然后我查看了挪威政府现在的资产状况。
In my diagram, I said that the tangency portfolio-- I estimated that the tangency portfolio is 9% oil, 27% stocks, and 64% bonds.
在我的曲线图里我有提到切线资产组合-,我估算出切线资产组合是9%的石油,27%的股票和64%的债券。
But now, you see there are a lot of possibilities and the outcome of your portfolio choice can be anything along this line.
但是现在你可以看到很多可能的投资组合,你决定的投资组合的结果,可以是这条线上任意一点。
Once you've got them together, then you can compute the efficient portfolio frontier without the riskless asset.
当你明确了这些参数后,就可以算出没有无风险资产情况下的,有效边界了。
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