Final answer:
To calculate the value of a fast-growing firm's stock, we must discount its expected future dividends to the present using a 10% discount rate, accounting for initial high growth and subsequent stable growth.
Step-by-step explanation:
The value of a stock is based on the present discounted value (PDV) of its expected future dividends. In the case described, we need to calculate the value of a fast-growing firm's stock, given its dividend growth rates and a 10% discount rate.
To find the stock's value, we calculate the PDV of dividends for each of the next three years with the 25% growth rate, and then calculate the terminal value of the stock at the end of the third year using the perpetuity formula with the 8% stable growth rate. These future values are then discounted back to present value using the 10% discount rate. The combined present value of these amounts gives us the value of the stock.