问题如下:
4. Which of Singh’s statements regarding the information ratio is correct?
选项:
A. Only Statement 1
B. Only Statement 2
C. Both Statement 1 and Statement 2
解释:
C is correct.
The information ratio for a portfolio of risky assets will generally shrink if cash is added to the portfolio. Because the diversified asset portfolio is an unconstrained portfolio, its information ratio would be unaffected by an increase in the aggressiveness of active weights.
考点: information ratio
解析: 定性结论,Statement 1 正确,增加cash会导致information ratio减小。Statement 2正确,增加aggressiveness不会改变information ratio。
老师 这道题可以深入解释一下为什么add cash会导致IR下降吗?我笔记上记了IR is unaffected by the addition of cash or the use of leverage or by the aggressiveness of active weights 请问哪里错了呀 谢谢老师!