Final answer:
The risk-free rate of return is obtained by subtracting the inflation rate from the long-term government bond returns, which in this case is 4.7% (option E) for the given 20-year period.
Step-by-step explanation:
The student asks what the risk-free rate of return was during a 20-year period given the following information: small-company returns of 16.7 percent, a risk premium of 9.8 percent, inflation of 5.4 percent, and long-term government bond returns of 10.1 percent. To answer this, we need to understand that the risk-free rate is typically represented by the long-term government bond returns minus the inflation rate.
Performing the calculations:
- Subtract the inflation rate from the long-term government bond returns: 10.1% - 5.4% = 4.7%
Therefore, the risk-free rate of return during this 20-year period was 4.7%, which matches answer choice E.