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【简答题】
某投资者准备从证券市场购入A、B、C、D四种股票组成投资组合。已知A、B、C、D四种股票的B系数分别为0.7、1.2、1.6、2.1。现行国库券的收益率为8%，市场平均股票的必要收益率为15%。 要求： (1) 采用资本资产定价模型分别计算这四种股票的预期收益率； (2) 假设该投资者准备长期持有A股票。A股票去年的每股股利为4元，预计年股利增长率为6%，当前每股市价为58元。投资A股票是否合算? (3) 若该投资者按5：2：3的比例分别购买了A、B、C三种股票，计算该投资组合的p系数和预期收益率； (4) 若该投资者按3：2：5的比例分别购买了B、C、D三种股票，计算该投资组合的p系数和预期收益率； (5) 根据上述(3)和(4)的结果，如果该投资者想降低风险，应选择哪一投资组合?
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【简答题】If you hang back, and reserve and criticise at first, you are pring yourself from getting the fullest possible value from what you read.
【单选题】What is the purpose of the article?
A.
to criticise people who always conform
B.
to encourage people to be individuals
C.
to examine the reasons for eccentric behaviour
D.
to describe problems faced by eccentric people
【单选题】A negative side of the Obama effect is that______.
A.
more people have started to criticise President Obama's racial policies
B.
relations between whites and African Americana may become tense again
C.
people are now less ready to support policies addressing racial inequality
D.
white people are likely to become more critical of African Americans
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