Final answer:
The value of the stock increases as the growth rate increases in the dividend growth model. Therefore, the correct option is a. increases
Step-by-step explanation:
In the dividend growth model, the discount rate and the growth rate play a significant role in calculating the value of a stock. The growth rate (g) refers to the rate at which the dividends of a stock are expected to increase over time.
As the growth rate increases:
- The value of the stock increases.
- The higher growth rate implies that the stock has better potential for future earnings, making it more valuable to investors.
Therefore, option a, increases, is the correct answer.