Portfolio Return =Rp=w1*R1+w2*R2 | |||||||
R1=Return of Asset 1=Return of T bills=5% | |||||||
R2=Return of Asset 2=Return of Index=(5+8)%=13% | |||||||
w1=Weight of asset1=Weight of T-bill | |||||||
w2=Weight of Asset2=Weight of Index | 1156 | ||||||
Portfolio Expected Return =Rp=w1*5+w2*13 | |||||||
Portfolio Variance =Vp | |||||||
Vp=(w1^2)*(S1^2)+(w2^2)*(S2^2)+2*w1*w2*Cov (1,2) | |||||||
S1=Standard Deviation of Asset 1=T bill standard Deviation=0 | |||||||
S2=Standard Deviation of Asset21=Index standard Deviation=34% | |||||||
Cov(1,2)=Covariance of Returns of Asset 1 and Asset 2=0 | |||||||
Vp=(w1^2)*(S1^2)+(w2^2)*(S2^2)+2*w1*w2*Cov (1,2) | |||||||
Portfolio Variance =Vp=(w2^2)*(34^2)=1156*(w2^2) | |||||||
U=Rp-0.5*A*Vp; A=3 | |||||||
U=Rp-0.5*3*Vp=Rp-1.5*Vp | |||||||
w1 | w2 | Rp | Vp | Rp-1.5*Vp | |||
Wbills | Windex | Expected Return | Portfolio Variance | U(A=3) | |||
0.0 | 1.0 | 0.13 | 0.1156 | -0.0434 | |||
0.2 | 0.8 | 0.114 | 0.073984 | 0.003024 | |||
0.4 | 0.6 | 0.098 | 0.041616 | 0.035576 | |||
0.6 | 0.4 | 0.082 | 0.018496 | 0.054256 | |||
0.8 | 0.2 | 0.066 | 0.004624 | 0.059064 | |||
1.0 | 0.0 | 0.05 | 0 | 0.05 | |||
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