Entrepreneurship for Computer Science CS

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Presentation transcript:

Entrepreneurship for Computer Science CS 15-390 LTV- Part I Lecture 9, February 04, 2018 Mohammad Hammoud

Today… Last Session: Business models- Part III Today’s Session: Lifetime value of an acquired customer (LTV)- Part I Announcements: PS2 is due on Feb 11 by midnight Quiz 1 is on Feb 18 CP1 is due on Feb 27 by midnight

Unit Economics Is your venture sustainable and attractive from a microeconomic standpoint? Yes, if Lifetime Value of an Acquired Customer (LTV) > Cost of Customer Acquisition (COCA) Rule of thumb: LTV > 3 × COCA In other words, yes, if you can acquire customers at a cost that is substantially less than their value to your venture Objective of any business: increase LTV and decrease COCA Failure to do this leads to detrimental outcomes (e.g., Pets.com)

Unit Economics: Pets.com as a Case Study Founded in 1998 Concept: sell pets products over the Internet Easily raised millions of dollars from investors Aggressively advertised its website, including a high-profile Super Bowl commercial in 2000 It was losing money with each customer it captured Its management assumed it is a matter of volume (with a huge customer base, the company would become cash-flow positive) Realized late that LTV < COCA In November 2000, it shutdown (300 million dollars of investors’ money were lost!) $300 million educational lesson: disciplined analysis and intellectual honesty about unit economics are crucial factors for success!

If the LTV does not equal Unit Economics Don’t worry, entrepreneurial math is much simpler. If the LTV does not equal 3 times the COCA, none of this matters! We will first learn how to calculate LTV then COCA However, to calculate LTV, we need to build a foundation on some basic finance concepts, namely, compounding and discounting Let us get started!

The Compounding Process Assume you want to deposit $100 in a bank that offers a 10% interest rate that is compounded annually What would be your total amount of money after 3 years? Year Your Money $100 1 $100 + ($100×0.1) = $100 × (1+0.1) = $100 × 1.1 = $110 2 $110 × 1.1 = ($100 × 1.1) × 1.1 = $100 × 1.12 = $121 3 $121 × 1.1 = (($100 × 1.1) × 1.1) × 1.1 = $100 × 1.13 = 133.1 Year Your Money $100 1 $100 + ($100×0.1) = $100 × (1+0.1) = $100 × 1.1 = $110 2 $110 × 1.1 = ($100 × 1.1) × 1.1 = $100 × 1.12 = $121 3 $121 × 1.1 = (($100 × 1.1) × 1.1) × 1.1 = $100 × 1.13 = 133.1 Year Your Money $100 1 $100 + ($100×0.1) = $100 × (1+0.1) = $100 × 1.1 = $110 2 $110 × 1.1 = ($100 × 1.1) × 1.1 = $100 × 1.12 = $121 3 $121 × 1.1 = (($100 × 1.1) × 1.1) × 1.1 = $100 × 1.13 = 133.1 Interest is accrued on interest; hence, the name compounded!

The Compounding Process Assume you want to deposit $100 in a bank that offers a 10% interest rate that is compounded annually What would be your total amount of money after 3 years? Year Your Money $100 1 $100 + ($100×0.1) = $100 × (1+0.1) = $100 × 1.1 = $110 2 $110 × 1.1 = ($100 × 1.1) × 1.1 = $100 × 1.12 = $121 3 $121 × 1.1 = (($100 × 1.1) × 1.1) × 1.1 = $100 × 1.13 = 133.1 Year Your Money $100 1 $100 + ($100×0.1) = $100 × (1+0.1) = $100 × 1.1 = $110 2 $110 × 1.1 = ($100 × 1.1) × 1.1 = $100 × 1.12 = $121 3 $121 × 1.1 = (($100 × 1.1) × 1.1) × 1.1 = $100 × 1.13 = 133.1 Year Your Money $100 1 $100 + ($100×0.1) = $100 × (1+0.1) = $100 × 1.1 = $110 2 $110 × 1.1 = ($100 × 1.1) × 1.1 = $100 × 1.12 = $121 3 $121 × 1.1 = (($100 × 1.1) × 1.1) × 1.1 = $100 × 1.13 = 133.1

The Compounding Process How long would it take to double your $100, assuming 10% interest rate? $100 × 1.1n = $200 1.1n = $2 n = log1.1 2 = log 2 / log 1.1 = 7.272 Another way to calculate this quickly is to divide 72 by 10 72/10 = 7.2, which is very close to 7.272 calculated above This is referred to as the “rule of 72”, which entails dividing 72 by the given interest rate How long would it take to double your $233, assuming 7% interest rate? 72/7 = 10.28 years (or log 2 / log 1.07 = 10.244 years)

The Compounding Process The trick of period and the magical e Compound Annually Compound Semi-annually Compound Monthly Compound Daily $1 Loan $1 Loan $1 Loan $1 Loan 100%/12 interest rate 100%/365 interest rate 1/12 Y 1/365 Y 1/2 Y 50% interest rate 100% interest rate 1×1.083= $1.083 1×1.00273= $1.00273 1 YEAR . . 1×1.5= $1.5 50% interest rate 1/2 Y 100%/12 interest rate 100%/365 interest rate 1/12 Y 1/365 Y 1×2= $2 1.5×1.5= 1×1.52 = $2.25 1×1.08312= $2.6 1×1.00273365 = $2.7     1×(1+1/1)1 = $2 1×(1+1/2)2 = $2.25 1×(1+1/12)12 = $2.613 1×(1+1/365)365 = $2.714 = e Interest Rate Period

The Compounding Process The trick of period and the magical e Most banks compound interest monthly or daily (this is referred to as continuous compounding) Compound Annually Compound Semi-annually Compound Monthly Compound Daily $1 Loan $1 Loan $1 Loan $1 Loan 100%/12 interest rate 100%/365 interest rate 1/12 Y 1/365 Y 1/2 Y 50% interest rate 100% interest rate 1×1.083= $1.083 1×1.00273= $1.00273 1 YEAR . . 1×1.5= $1.5 50% interest rate 1/2 Y 100%/12 interest rate 100%/365 interest rate 1/12 Y 1/365 Y 1×2= $2 1.5×1.5= 1×1.52 = $2.25 1×1.08312= $2.6 1×1.00273365 = $2.7     1×(1+1/1)1 = $2 1×(1+1/2)2 = $2.25 1×(1+1/12)12 = $2.613 1×(1+1/365)365 = $2.714 = e Interest Rate Period

The Discounting Process Assume someone proposes to give you $100 today or $110 in a year Which option would you select, assuming 5% risk-free interest rate? Option 1 Option 2 timeline Today (or Year 0) $100 5% risk-free interest rate, compounded annually Year 1 $100 × 1.05 = $105 $110

The Discounting Process Assume someone proposes to give you $100 today or $110 in a year Which option would you select, assuming 5% risk-free interest rate? Option 1 Option 2 timeline Today (or Year 0) $100 $110/1.05 = $104.76 5% discount rate, discounted annually Year 1 $110

The Discounting Process Assume someone proposes to give you $100 today or $110 in a year Which option would you select, assuming 5% risk-free interest rate? Option 1 Option 2 Present Value of $110 timeline Today (or Year 0) $100 $110/1.05 = $104.76 5% risk-free interest rate, compounded annually 5% discount rate, discounted annually Future Value of $100 Year 1 $100 × 1.05 = $105 $110 Discounting is the opposite of compounding; In compounding you multiply by (1 + interest rate), but in discounting you divide by (1 + discount rate).

The Discounting Process Assume someone proposes to give you $100 today or $110 in a year Which option would you select, assuming 5% risk-free interest rate? Option 1 Option 2 Present Value of $110 timeline Today (or Year 0) $100 $110/1.05 = $104.76 5% risk-free interest rate, compounded annually 5% discount rate, discounted annually Future Value of $100 Year 1 $100 × 1.05 = $105 $110 The “Present Value” concept in one of the fundamental and most useful concepts in finance!

The Discounting Process Assume someone proposes to give you $100 today, $110 in 2 years, or ($30 today, $30 in a year, and $40 in 2 years) Which option would you select, assuming 5% discount rate? Option 1 Option 2 Option 3 Year 0 $100 $110/1.052 = $99.77 $30 + $30/1.05 + $40/1.052 = 94.85 Year 1 $110/1.05 $30 $40/1.05 Year 2 $110 $40

The Discounting Process Assume someone proposes to give you $100 today, $110 in 2 years, or ($30 today, $30 in a year, and $40 in 2 years) Which option would you select, assuming 4% discount rate? Option 1 Option 2 Option 3 Year 0 $100 $110/1.042 = $101.7 $30 + $30/1.04 + $40/1.042 = 95.82 Year 1 $110/1.04 $30 $40/1.04 Year 2 $110 $40 As the discount rate decreases, the present value increases and vice versa.

Present Value Present value is the result of discounting future value to the present In general, its formula can be stated as follows: PV = FV/(1+r)n, where PV = Present Value FV = Future Value r = Discount Rate (or rate of return) n = Number of Periods, which could be in years, months, weeks, etc. Related to the concept of the present value is the net present value

Net Present Value Assume you want to invest in a business $10,000 Can you pay off this investment in 3 years, assuming a discount rate of 5%? Cash Outflow Cash Inflow Cash Inflow Cash Inflow Year 0 $10,000 Year 1 $3,000 There is a Time Value of Money (e.g., $10 today worth more than $10 in a year) because of inflation and earnings that could be potentially made using the money during the intervening time; hence, discount! Year 2 $4,000 Year 3 $5,000

Net Present Value Assume you want to invest in a business $10,000 Can you pay off this investment in 3 years, assuming a discount rate of 5%? Cash Outflow Cash Inflow Cash Inflow Cash Inflow Year 0 $10,000 $3,000/1.05 = $2857.14 $4,000/1.052 = $3628.11 $5,000/1.053 = $4319.18 Year 1 $3,000 Year 2 $4,000 Year 3 $5,000

Net Present Value Assume you want to invest in a business $10,000 Can you pay off this investment in 3 years, assuming a discount rate of 5%? 𝑪𝒂𝒔𝒉 𝑰𝒏𝒇𝒍𝒐𝒘𝒔 Cash Outflow Cash Inflow Cash Inflow Cash Inflow Year 0 $10,000 $2857.14 $3628.11 $4319.18 $10804.44 Year 1 $3,000 Year 2 $4,000 Year 3 $5,000

YES, you can pay off your investment in 3 years Net Present Value Assume you want to invest in a business $10,000 Can you pay off this investment in 3 years, assuming a discount rate of 5%? 𝑪𝒂𝒔𝒉 𝑰𝒏𝒇𝒍𝒐𝒘𝒔 ( 𝑪𝒂𝒔𝒉 𝑰𝒏𝒇𝒍𝒐𝒘𝒔) −𝑪𝒂𝒔𝒉 𝑶𝒖𝒕𝒇𝒍𝒐𝒘 Cash Outflow Year 0 $10,000 $10804.44 $10804.44 – $10,000 = 804.44 Year 1 YES, you can pay off your investment in 3 years Year 2 Year 3

Net Present Value Net Present Value (NPV) is a capital budgeting tool that can be used to analyze the profitability of a projected investment or project NPV = PV(All Cash Inflows) – PV(Cash Outflow) If NPV > 0 accept; otherwise, reject! More formally, NPV = 𝑛=1 𝑁 𝐶 𝑛 (1+𝑟) 𝑛 − 𝐶 0 , where N = Number of time periods Cn = Net cash inflow during period n C0 = Net cash outflow (or total initial investment) r = Discount rate

Next Class Calculate the Lifetime Value (LTV) of an Acquired Customer