Answer:
The expected return on this stock is 10.19%
Explanation:
We first need to determine the sustainable growth rate in dividends. The sustainable growth rate is,
Sustainable growth rate (g) = ROE * RR
Where,
Sustainable growth rate (g) = 0.15 * (1-0.5) = 0.075 or 7.5%
To calculate the required/expected return on this stock, we will use the constant growth model of DDM as the dividends are expected to grow at a constant rate because of the sustainable growth rate. The formula for price under Constant growth model is,
P0 = D0 * (1+g) / (r - g)
Plugging in the values for Price today, growth rate and D0, we can calculate the required rate of return,
80 = 2 * (1+0.075) / (r - 0.075)
80 * (r - 0.075) = 2.15
80r - 6 = 2.15
80r = 2.15 + 6
r = 8.15 / 80
r = 0.101875 or 10.1875% rounded off to 10.19%