Final answer:
To calculate the expected value today of the company given an 18-year horizon, we calculate the present values of both sustainable and non-sustainable investments using the discount rate and probability of being sustainable, and then add them together.
Step-by-step explanation:
To calculate the expected value today of the company given an 18-year horizon, we need to consider both the value of sustainable investing and the value of non-sustainable investing.
First, we calculate the present value of the sustainable investing using the discount rate.
Present value of sustainable investing = Value of sustainable investing / (1 + discount rate)18
Next, we calculate the present value of the non-sustainable investing by multiplying the value of non-sustainable investing with the probability of being sustainable.
Present value of non-sustainable investing = Value of non-sustainable investing * Probability of being sustainable
Finally, we add the present values of both investments to get the expected value today of the company.
Expected value today = Present value of sustainable investing + Present value of non-sustainable investing