Chapter 13 – Empirical Evidence on Security Returns
13-9
21. Consider the regression equation:
ri – rf = g0 + g1bi + g2s2(ei) + eit
where:
ri – rt = the average difference between the monthly return on stock i and the monthly risk-free
rate
bi = the beta of stock i
s2(ei) = a measure of the nonsystematic variance of the stock i
If you estimated this regression equation and the CAPM was valid, you would expect the
estimated coefficient, g1 to be
A. 0
Difficulty: Moderate
22. Consider the regression equation:
ri – rf = g0 + g1bi + g2s2(ei) + eit
where:
ri – rt = the average difference between the monthly return on stock i and the monthly risk-free
rate
bi = the beta of stock i
s2(ei) = a measure of the nonsystematic variance of the stock i
If you estimated this regression equation and the CAPM was valid, you would expect the
estimated coefficient, g2 to be
E. none of the above
Difficulty: Moderate