Question: Suppose stock returns can be explained by a two-factor model. The firm-specific risks for all stocks are independent. The following table shows the information for two diversified portfolios:
Beta 1 Beta2 E(R)
Portfolio A .75 1.2 18%
Portfolio B 1.6 -0.20 14
If the risk-free is 6 percent, what are the risk premiums for each factor in the model? Please show your work