2 Contents Compounding The Frequency of Compounding Present Value and Discounting Discounted Cash Flow Decision Rules Multiple Cash Flows Annuities, Perpetuities Loan Amortization Exchange Rates and Time Value of Money Inflation and DCF Analysis Taxes and Investment Decisions
3 Compounding: Value of Investing $1 at 10%
4 Compounding: Value of $5 Invested at 10% More generally, with an investment of $5 at 10% we obtainMore generally, with an investment of $5 at 10% we obtain
5 Compounding: Future Value of a Lump Sum
6 Example: Future Value of a Lump Sum Your bank offers a CD with an interest rate of 3% for a 5 year investments. You wish to invest $1,500 for 5 years, how much will your investment be worth?
7 Discounting: Present Value of a Lump Sum
8 Example: Present Value of a Lump Sum You have been offered $40,000 for your printing business, payable in 2 years. Given the risk, you require a return of 8%. What is the present value of the offer ?
9 Example: Interest Rate on a Lump Sum Investment If you invest $15,000 for ten years, you receive $30,000. What is your annual return?
10 The Frequency of Compounding Annual Percentage Rate (APR) Effective Annual Rate (EFF): The equivalent interest rate, if compounding were only once a year.
11 Effective Annual Rates of an APR of 18%
12 The Frequency of Compounding Note that as the frequency of compounding increases, so does the annual effective rate What occurs as the frequency of compounding rises to infinity?
13 The Frequency of Compounding
14 The Frequency of Compounding
15 Annuities A level stream of Cash Flows or Payments Immediate Annuity: The Cash Flows start immediately. Ordinary Annuity: The Cash Flows start at the end of the current period.
16 Derivation of PV of Ordinary Annuity Formula
17 Derivation of PV of Ordinary Annuity Formula
18 PV of Ordinary Annuity Formula
19 Annuity Formula: PV of Immediate Annuity
20 Derivation of FV of Annuity Formula
21 Perpetual Annuities / Perpetuities Recall the annuity formula: Let n -> infinity with i > 0:
22 Alternative Discounted Cash Flow Decision Rules 1. NPV rule: the NPV is the difference between the present value of all future cash inflows minus the present value of all current and future cash outflows. Accept a project if its NPV is positive.
23 DCF rules Example: You have the opportunity to buy a piece of land for $10,000. You are sure that 5 years from now it will be worth $20,000. If you can earn 8% per year by investing your money in bank, is this investment in the land worthwhile?
24 NPV rule solution
25 Alternative Discounted Cash Flow Decision Rules 2. FV rule: Invest if the future value of the investment is larger than the future value that can be obtained from the next best alternative.
26 FV rule solution
27 Alternative Discounted Cash Flow Decision Rules 3. IRR rule: The IRR is the discount rate at which the NPV is zero. Invest if the IRR is greater than the opportunity cost of capital.
28 IRR rule solution
29 Alternative Discounted Cash Flow Decision Rules 4. Choose the investment alternative with fastest payback.
30 Payback rule solution
31 Loan Amortization The process of paying a loan principal gradually over its term Example: $100,000 mortgage loan, APR: 9%, repaid in 3 annual installments pmt=? pmt=$
41 Computing NPV in Different Currencies In any TVM calculation, the cash flows and the interest rate must be denominated in the same currency.
42 Inflation and Future Values Example: At age 20 you save $100 and invest it at a dollar interest rate of 8% per year, and you do not take it until age 65. If the inflation is estimated 5% per year, how much will you have accumulated in the account at that time in terms of real purchasing power?
43 Solution 1:
44 Solution 2:
45 Inflation and Present Values Example: Your daughter is 10 years old, and you are planning to open an account to provide for her college education. Tuition for a year of college is now $15,000. How much must you invest now in order to have enough to pay for her first year s tuition 8 years from now, if you think you can earn a rate of interest that is 3% more than the inflation rate of 5%?
46 Solution: Wrong:
47 Inflation and Present Values Never use a nominal interest rate when discounting real cash flows or a real interest rate when discounting nominal cash flows.