Answer:
the differene in the required rate of return of eahc company is 0.675%
Step-by-step explanation:
we solve using the CAPM method:
risk free 0.0425
market rate 0.11
Company A
beta(non diversifiable risk) 0.7
Ke 0.08975 = 8.975%
Company B
beta(non diversifiable risk) 0.8
Ke 0.09650 = 9.65%
difference: 9.65% - 8.975% = 0.675%