NO.PZ2015121801000111
问题如下：
With respect to capital market theory, which of the following assumptions allows for the existence of the market portfolio? All investors:
选项：
A.are price takers.
B.have homogeneous expectations.
C.plan for the same, single holding period.
解释：
B is correct.
The homogeneous expectations assumption means that all investors analyze securities in the same way and are rational. That is, they use the same probability distributions, use the same inputs for future cash flows, and arrive at the same valuations. Because their valuation of all assets is identical, they will generate the same optimal risky portfolio, which is the market portfolio.
假设分为对人的假设和对市场的假设，price taker这个条件属于对市场假设（要求无市场冲击）。
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加油吧，让我们一起遇见更好的自己！
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后半句想说的是price takere属于对人的假设对麻？前半句看懂了，后半句没明白，问的就是对市场的假设，PRICE TAKER属于对市场假设那就没错啊
