|   
 Q11. Based on the following information, which asset class is the most significant in an efficient portfolio with an expected return of 12.50%? The following are the long-term capital market expectations: 
| 
    | 
 Asset Class   | 
 Expected Return   | 
 Exp. Std. Dev.  | 
 Correlations  |  
| 
 1   | 
 2   | 
 3   | 
 4   | 
 5  |  
| 
 1   | 
 US Equity  | 
 12.00%  | 
 16.00%  | 
 1.00   | 
    | 
    | 
    | 
    |  
| 
 2   | 
 US Bonds  | 
 8.25%  | 
 6.50%  | 
 0.32   | 
 1.00   | 
    | 
    | 
    |  
| 
 3   | 
 Intl Equities  | 
 14.00%  | 
 18.00%  | 
 0.46   | 
 0.22  | 
 1.00   | 
    | 
    |  
| 
 4   | 
 Intl Bonds  | 
 9.25%  | 
 12.25%  | 
 0.23   | 
 0.56   | 
 0.32   | 
 1.00   | 
    |  
| 
 5   | 
 Alt Inv  | 
 11.50%  | 
 21.00%  | 
 0.25   | 
 0.11   | 
 0.08   | 
 0.06   | 
 1.00  |   
The details of each corner portfolio are given below. The risk free rate is assumed to be equal to the T-bill rate of 3.00%. Using margin is not allowed.  
| 
 Corner Portfolio  | 
 Expected Return  | 
 Exp. Std. Dev.  | 
 Sharpe Ratio  | 
 Asset Class Weights  |  
| 
 1   | 
 2   | 
 3   | 
 4   | 
 5  |  
| 
 1   | 
 14.00%   | 
 18.00%   | 
 0.639   | 
 0.00%   | 
 0.00%   | 
 100.00%   | 
 0.00%   | 
 0.00%  |  
| 
 2   | 
 13.66%   | 
 16.03%   | 
 0.696   | 
 0.00%   | 
 0.00%   | 
 86.36%  | 
 0.00%   | 
 14.00%  |  
| 
 3   | 
 13.02%   | 
 13.58%   | 
 0.775   | 
 21.69%   | 
 0.00%   | 
 56.56%   | 
 0.00%   | 
 21.76%  |  
| 
 4   | 
 12.79%   | 
 13.00%   | 
 0.792   | 
 21.48%   | 
 0.00%   | 
 52.01%   | 
 5.24%   | 
 21.27%  |  
| 
 5   | 
 10.54%   | 
 8.14%   | 
 0.988   | 
 9.40%   | 
 51.30%   | 
 26.55%   | 
 0.00%   | 
 12.76%  |  
| 
 6   | 
 8.70%   | 
 6.32%   | 
 0.981   | 
 0.00%   | 
 89.65%   | 
 4.67%   | 
 0.00%   | 
 5.68%  |   
A)   Alternative investments with a weight of 20.17%.  
B)   International equity with a weight of 48.70%.  
C)   International equity with a weight of 45.51%. 
  
[此贴子已经被作者于2009-3-5 15:53:04编辑过]  |