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Discounted Cash Flow Valuation. BASIC PRINCIPAL. Would you rather have $1,000 today or $1,000 in 30 years? Why?. Present and Future Value. Present Value: value of a future payment today Future Value: value that an investment will grow to in the future
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BASIC PRINCIPAL • Would you rather have $1,000 today or $1,000 in 30 years? • Why?
Present and Future Value • Present Value: value of a future payment today • Future Value: value that an investment will grow to in the future • We find these by discounting or compounding at the discount rate • Also know as the hurdle rate or the opportunity cost of capital or the interest rate
One Period Discounting • PV = Future Value / (1+ Discount Rate) • V0 = C1 / (1+r) • Alternatively • PV = Future Value * Discount Factor • V0 = C1 * (1/ (1+r)) • Discount factor is 1/ (1+r)
PV Example • What is the value today of $100 in one year, if r = 15%?
FV Example • What is the value in one year of $100, invested today at 15%?
NPV • NPV = PV of all expected cash flows • Represents the value generated by the project • To compute we need: expected cash flows & the discount rate • Positive NPV investments generate value • Negative NPV investments destroy value
Net Present Value (NPV) • NPV = PV (Costs) + PV (Benefit) • Costs: are negative cash flows • Benefits: are positive cash flows • One period example • NPV = C0 + C1 / (1+r) • For Investments C0 will be negative, and C1 will be positive • For Loans C0 will be positive, and C1 will be negative
Net Present Value Example • Suppose you can buy an investment that promises to pay $10,000 in one year for $9,500. Should you invest?
Net Present Value • Since we cannot compare cash flow we need to calculate the NPV of the investment • If the discount rate is 5%, then NPV is? • At what price are we indifferent?
Net Present Value • Since we cannot compare cash flow we need to calculate the NPV of the investment • If the discount rate is 5%, then NPV is? • At what price are we indifferent?
Coffee Shop Example • If you build a coffee shop on campus, you can sell it to Starbucks in one year for $300,000 • Costs of building a coffee shop is $275,000 • Should you build the coffee shop?
Step 2: Find the Discount Rate • Assume that the Starbucks offer is guaranteed • US T-Bills are risk-free and currently pay 7% interest • This is known as rf • Thus, the appropriate discount rate is 7% • Why?
Step 3: Find NPV • The NPV of the project is?
If we are unsure about future? • What is the appropriate discount rate if we are unsure about the Starbucks offer • rd = rf • rd > rf • rd < rf
The Discount Rate • Should take account of two things: • Time value of money • Riskiness of cash flow • The appropriate discount rate is the opportunity cost of capital • This is the return that is offer on comparable investments opportunities
Risky Coffee Shop • Assume that the risk of the coffee shop is equivalent to an investment in the stock market which is currently paying 12% • Should we still build the coffee shop?
Calculations • Need to recalculate the NPV
Future Cash Flows • Since future cash flows are not certain, we need to form an expectation (best guess) • Need to identify the factors that affect cash flows (ex. Weather, Business Cycle, etc). • Determine the various scenarios for this factor (ex. rainy or sunny; boom or recession) • Estimate cash flows under the various scenarios (sensitivity analysis) • Assign probabilities to each scenario
Expectation Calculation • The expected value is the weighted average of X’s possible values, where the probability of any outcome is p • E(X) = p1X1 + p2X2 + …. psXs • E(X) – Expected Value of X • Xi Outcome of X in state i • pi – Probability of state i • s – Number of possible states • Note that = p1 + p2 +….+ ps = 1
Risky Coffee Shop 2 • Now the Starbucks offer depends on the state of the economy
Calculations • Discount Rate = 12% • Expected Future Cash Flow = • NPV = • Do we still build the coffee shop?
Valuing a Project Summary • Step 1: Forecast cash flows • Step 2: Draw out the cash flows • Step 3: Determine the opportunity cost of capital • Step 4: Discount future cash flows • Step 5: Apply the NPV rule
Reminder • Important to set up problem correctly • Keep track of • Magnitude and timing of the cash flows • TIMELINES • You cannot compare cash flows @ t=3 and @ t=2 if they are not in present value terms!!
General Formula PV0 = FVN/(1 + r)N OR FVN = PVo*(1 + r)N • Given any three, you can solve for the fourth • Present value (PV) • Future value (FV) • Time period • Discount rate
Four Related Questions • How much must you deposit today to have $1 million in 25 years? (r=12%) • If a $58,823.31 investment yields $1 million in 25 years, what is the rate of interest? • How many years will it take $58,823.31 to grow to $1 million if r=12%? • What will $58,823.31 grow to after 25 years if r=12%?
FV Example • Suppose a stock is currently worth $10, and is expected to grow at 40% per year for the next five years. • What is the stock worth in five years? $10 14 19.6 27.44 38.42 0 1 2 3 4 5
0 1 2 3 4 5 PV Example • How much would an investor have to set aside today in order to have $20,000 five years from now if the current rate is 15%? $20,000 PV
Simple vs. Compound Interest • Simple Interest: Interest accumulates only on the principal • Compound Interest: Interest accumulated on the principal as well as the interest already earned • What will $100 grow to after 5 periods at 35%? • Simple interest • FV2 = (PV0 * (r) + PV0 *(r)) + PV0 = PV0 (1 + 2r) = • Compounded interest • FV2 = PV0 (1+r) (1+r)= PV0 (1+r)2 =
Compounding Periods • We have been assuming that compounding and discounting occurs annually, this does not need to be the case
Non-Annual Compounding • Cash flows are usually compounded over periods shorter than a year • The relationship between PV & FV when interest is not compounded annually • FVN = PV * ( 1+ r / M) M*N • PV = FVN / ( 1+ r / M) M*N • M is number of compounding periods per year • N is the number of years
Compounding Examples • What is the FV of $500 in 5 years, if the discount rate is 12%, compounded monthly? • What is the PV of $500 received in 5 years, if the discount rate is 12% compounded monthly?
Interest Rates • The 12% is the Stated Annual Interest Rate (also known as the Annual Percentage Rate) • This is the rate that people generally talk about • Ex. Car Loans, Mortgages, Credit Cards • However, this is not the rate people earn or pay • The Effective Annual Rate is what people actually earn or pay over the year • The more frequent the compounding the higher the Effective Annual Rate
Compounding Example 2 • If you invest $50 for 3 years at 12% compounded semi-annually, your investment will grow to:
Compounding Example 2: Alt. • If you invest $50 for 3 years at 12% compounded semi-annually, your investment will grow to: • Calculate the EAR: EAR = (1 + R/m)m – 1 • So, investing at compounded annually is the same as investing at 12% compounded semi-annually
EAR Example • Find the Effective Annual Rate (EAR) of an 18% loan that is compounded weekly.
Present Value Of a Cash Flow Stream • Discount each cash flow back to the present using the appropriate discount rate and then sum the present values.
Insight Example Which project is more valuable? Why?
Example (Given) • Consider an investment that pays $200 one year from now, with cash flows increasing by $200 per year through year 4. If the interest rate is 12%, what is the present value of this stream of cash flows? • If the issuer offers this investment for $1,500, should you purchase it?
Multiple Cash Flows (Given) 0 1 2 3 4 200 400 600 800 178.57 318.88 427.07 508.41 1,432.93
Common Cash Flows Streams • Perpetuity, Growing Perpetuity • A stream of cash flows that lasts forever • Annuity, Growing Annuity • A stream of cash flows that lasts for a fixed number of periods • NOTE: All of the following formulas assume the first payment is next year, and payments occur annually
C C C 0 1 2 3 Perpetuity • A stream of cash flows that lasts forever • PV: = C/r • What is PV if C=$100 and r=10%: …
C1 C2(1+g) C3(1+g)2 … 0 1 2 3 Growing Perpetuities • Annual payments grow at a constant rate, g PV= C1/(1+r) + C1(1+g)/(1+r)2 + C1(1+g)2(1+r)3 +… • PV = C1/(r-g) • What is PV if C1 =$100, r=10%, and g=2%?
$1.30 1 0 Growing Perpetuity: Example (Given) • The expected dividend next year is $1.30, and dividends are expected to grow at 5% forever. • If the discount rate is 10%, what is the value of this promised dividend stream? $1.30 ×(1.05)2 = $1.43 $1.30×(1.05) = $1.37 … 2 3 PV = 1.30 / (0.10 – 0.05) = $26
Example An investment in a growing perpetuity costs $5,000 and is expected to pay $200 next year. If the interest is 10%, what is the growth rate of the annual payment?
C C C C 0 1 2 3 T Annuity A constant stream of cash flows with a fixed maturity
C C C C C C C 0 1 2 3 T+3 T+1 T+2 T Annuity Formula Simply subtracting off the PV of the rest of the perpetuity’s cash flows
Annuity Example 1 • Compute the present value of a 3 year ordinary annuity with payments of $100 at r=10% • Answer: Or
Alternative: Use a Financial Calculator • Texas Instruments BA-II Plus, basic • N = number of periods • I/Y = periodic interest rate • P/Y must equal 1 for the I/Y to be the periodic rate • Interest is entered as a percent, not a decimal • PV = present value • PMT = payments received periodically • FV = future value • Remember to clear the registers (CLR TVM) after each problem • Other calculators are similar in format