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Corporate Investment and Shareholder Wealth. Why do positive NPV investments lead to increases in share price?. Stock Price and NPV: A Simplified Example. Firm has no debt Existing assets generate earnings, E (=EPS*n) of $9M per year forever Discount rate = 10% Firm has n shares
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Why do positive NPV investments lead to increases in share price?
Stock Price and NPV: A Simplified Example • Firm has no debt • Existing assets generate earnings, E (=EPS*n) of $9M per year forever • Discount rate = 10% • Firm has n shares (5 mil) currently selling at P0 = $18 per share
Share Price Effect of New Project • Now firm plans to invest I = $20M in new project • Project will generate $3M in new earnings per year forever • Firm will issue n new shares at price P0* to finance project (proceeds = 20M)
NPV and Share Price • Wealth of original shareholders goes up by NPV of new project
The NPVGO Model The example is consistent with text equation (6.10), where NPVGO = NPV per share of new project
Further Implications • 5 million original shares go up in value by $10M • Price per share goes up by $2 from $18 to $20 • At a share price of $20, need to issue 1 million new shares to raise $20 million • New shareholders own 1/6 of firm, so can claim (1/6)x12 = 2M in cash flow, so earn 10% return
Points to Emphasize • One-to-one correspondence between positive NPV and increase in stock price (primary justification for NPV criterion) • All of project’s NPV captured by original shareholders • Importance of efficient capital market
NPVGO Model Stated More Generally Stock price = present value of the earnings stream from existing assets plus the present value of the NPVs per share of all current and future new projects
Constant Growth Special Case of the NPVGO Model If company always invests the fraction b of each year’s earnings in projects that earn a constant, perpetual rate of return ROE:
Stock Price Representations General CaseConstant Growth Special Case 1. Dividend Discount Model 2. NPVGO Model