贝同学2020-02-25 17:41:05
贝同学第15题，题干内容和课后题不同。
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Chris Lan2020-02-25 21:26:34
Chris Lan同学你好
这个题协会勘误了。
In the solution to practice problem 15 (page 541 of print), the second sentence should read as follows: “Chen prefers an approach that emphasizes security-specific factors, engages in factor timing, and typically leads to portfolios that are generally more concentrated than those built using a systematic approach.”
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哪里能知道那些题勘误了呢？
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