You have been offered the following investment opportunity: if you invest $16,000 today, you will receive $4,000 two years from now, $7,000 four years from now, and $9,000 six years from now.
a) What is the NPV of the opportunity if the interest rate is 6% per year? Should you take this opportunity?
b) What is the NPV of the opportunity if the interest rate is 2% per year? Should you take this opportunity?