A.Combining any two risky assets in a portfolio will reduce unsystematic risk compared to a portfolio holding only one of the two risky assets.
B.Adding a risky stock to a (less risky) bond portfolio can decrease portfolio risk.
C.A portfolio with the minimum risk for its level of expected return lies on the efficient frontier.
[主观题]Portfolio theory 投资组合理论
[名词解释] Portfolio theory 投资组合理论
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