题目
On a graph of risk, measured by standard deviation, and expected return, the efficient frontier represents:
选项
A.all portfolios plotted in the northeast quadrant that maximize return.
B.the set of portfolios that dominate all others as to risk and return.
C.all portfolios plotted to the left of the graph that maximize either risk or return.
D.the group of portfolios that have extreme values and therefore are \u201cefficient\u201d in their allocation.
答案
B
解析
The efficient set is the set of portfolios that dominate all other portfolios as to risk and return. That is, they have highest expected return at each level of risk.有效集是在风险和回报方面支配所有其他投资组合的投资组合集。 也就是说，他们在每种风险水平下都具有最高的预期收益。