沒有提expected return, 沒有提risk-free rate,沒有risk premium,更沒有efficient frontier這類東西
講多了人家更不懂了,這裏隻是就事論事講beta
沒有提expected return, 沒有提risk-free rate,沒有risk premium,更沒有efficient frontier這類東西
講多了人家更不懂了,這裏隻是就事論事講beta
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