40  Fundamental Principles of Value Creation had low growth but increased their ROICs outperformed the faster-growing companies that did not improve their ROICs. One final factor for management to consider is the method by which it chooses to improve ROIC. A company can increase ROIC by either improv- ing profit margins or improving capital productivity. With respect to future growth, it doesn’t matter which of these paths a company emphasizes. But for current operations, at moderate ROIC levels, a one-percentage-point in- crease in ROIC through margin improvement will have a moderately higher impact on value relative to improving capital productivity. At high levels of ROIC, though, improving ROIC by increasing margins will create much more value than an equivalent ROIC increase by improving capital productivity. Exhibit 3.10 shows how this works for a company that has a 9 percent cost of capital. The reason for this relationship is best explained by an example. Con- sider a company with zero growth, $1,000 of revenues, $100 of profits, and $500 of invested capital (translating to a 10 percent margin, a 50 percent ratio of invested capital to revenues, and ROIC of 20 percent). One way to increase ROIC by one percentage point is to increase the profit margin to 10.5 percent, increasing profits by $5. Since the company is not growing, the $5 of extra profits translates to $5 of cash flow each year going forward. Discounting at a 10 percent cost of capital, this represents a $50 increase in value. The company could also increase ROIC by reducing working capital. If it reduced working capital by $24, ROIC would increase to 21 percent ($100 divided by $476). The company’s value would increase only by the $24 one-time cash inflow from reducing working capital. Future cash flows would not be affected. Economic Profit Combines ROIC and Size You can also measure a company’s value creation using economic profit, a measure that combines ROIC and size into a currency metric (here we use the EXHIBIT 3.10  Impact on Value of Improving Margin vs. Capital Productivity Increase in value from improving ROIC by 1 percentage point1 % change ROIC, % Through margin improvement Through capital productivity Ratio of margin impact to capital productivity impact 10 20.0 13.5 1.2x 20 6.7 2.9 2.3x 30 4.0 1.2 3.4x 40 2.9 0.6 4.6x 1 For a company with a 9% cost of capital. Economic Profit Combines ROIC and Size  41 U.S. dollar). Economic profit measures the value created by a company in a single period and is defined as follows: Economic Profit Invested Capital ROIC Cost of Capital = × − ( ) In other words, economic profit is the spread between the return on invested capital and the cost of capital times the amount of invested capital. Value Inc.’s economic profit for year 1 is $50 (Value Inc. must have $500 of starting capital if it earns $100 at a 20 percent return in year 1): Economic Profit = × − = × = $ ( % %) $ % $ 500 20 10 500 10 50 Volume Inc.’s economic profit in year 1 is zero (Volume Inc. must have $1,000 of starting capital if it earns $100 at a 10 percent return in year 1): Economic Profit = × − = × = $ , ( % %) $ , % $ 1 000 10 10 1 000 0 0 You can also value a company by discounting its projected economic profit at the cost of capital and adding the starting invested capital. Value Inc. starts with $500 of invested capital. Its economic profit in year 1 is $50, which grows at 5 percent. Discounting the growing economic profit at a 10 percent discount rate gives a present value of economic profit of $1,000.9 Use these amounts to solve for value: Value Starting Invested Capital PV Projected Economic Profit = + = ( ) $ $ , $ , 500 1 000 1 500 + = The value of Value Inc. using the economic-profit approach is $1,500, exactly the same as with the discounted-cash-flow (DCF) approach. Economic profit is also useful for comparing the value creation of differ- ent companies or business units. Consider Value Inc.’s economic profit of $50. Suppose Big Inc. had $5,000 in invested capital but earned only a 15 percent return on capital (and assume it doesn’t have investment opportunities with 9 The present value of economic profit for a growing perpetuity is economic profit in year 1 divided by the cost of capital minus the growth rate. For Value Inc., the present value of economic profit is there- fore $50/(10% – 5%).