Suppose that the market can be described by the following three sources of systematic risk with associated risk premiums.

Factor

Risk Premium

Industrial production (I)

6%

Interest rates (R)

2

Consumer confidence (C)

4

The return on a particular stock is generated according to the following equation:

r =15% + 1.0I + .5R + .75C + e

Find the equilibrium rate of return on this stock using the APT. The T-bill rate is 6%. Is the stock over- or underpriced? Explain.