没有提expected return, 没有提risk-free rate,没有risk premium,更没有efficient frontier这类东西
讲多了人家更不懂了,这里只是就事论事讲beta
没有提expected return, 没有提risk-free rate,没有risk premium,更没有efficient frontier这类东西
讲多了人家更不懂了,这里只是就事论事讲beta
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