问题
单项选择题
Without the introduction of a risk-free asset or a zero-beta portfolio, the optimal portfolio on the efficient frontier for each investor is represented by:()
A. the point where the investor’s highest indifference curve is tangent to the efficient frontier.
B. any point where an indifference curve intersects the efficient frontier.
C. the point where the capital market line touches the frontier.
答案
参考答案：A
解析：
In the absence of a riskless asset, the optimal portfolio for an investor is the point of tangency between the efficient frontier and the highest possible indifference curve for the investor.