Walgreen Company reported the following earnings per share from 1989 to 1994.

Year

EPS

1989

$1.28

1990

$1.42

1991

$1.58

1992

$1.78

1993

$1.98

1994

$2.30

a. Estimatethearithmetic average and geometric average growthratein earningspershare between 1989 and 1994. Why are they different? Which is more reliable?

b. Estimate the growth rate using a linear growth model.

c. Estimate the growth rate using a log-linear growth model.