A note on ROI, RI and EVA: for advanced management accounting students

A note on ROI, RI and EVA: for advanced management accounting students

Regarding the subject of advanced management accounting, I would like to know what is the most appropriate situation to use the following financial performance measures in an enterprise:

1.              ROI

2.              Residual income

3.              Economic value added

A related question is: when indeed the financial performance measure is the most appropriate, please offer 2 advices how the performance measure should be used effectively.

 

All three measures are best suited to investment centres—business units or managers that control revenues, costs, and the capital/assets employed. The key difference is that ROI is a relative percentage, whereas RI and EVA are absolute economic-profit measures.

When each measure is most appropriate

Measure	Formula / basis	Most appropriate situation	Main strength	Main caution
ROI	Operating profit ÷ average invested capital	Comparing divisions, projects, or business units of different sizes; benchmarking against targets, competitors, or industry norms	Easy to understand and comparable because it is a percentage; can be decomposed into profit margin and asset turnover	Can discourage a manager from accepting a project above the cost of capital but below the division’s current ROI, reducing goal congruence
Residual income (RI)	Operating profit − (invested capital × required rate of return)	Evaluating whether a division or project earns more than the company’s minimum required return; capital-allocation and investment decisions	Better promotes goal congruence: a positive RI means the investment earns above the required return, consistent with NPV logic	Being an absolute dollar amount, it is harder to compare units of different sizes; depends on a reliable required return
EVA	NOPAT − (invested capital × WACC), after accounting adjustments	Assessing shareholder-value creation in a mature company or division where capital intensity, accounting distortions, and long-term investments matter	Adjusts accounting profit and capital to better reflect economic profit; can reduce short-termism by capitalising value-building spending such as R&D, training, and advertising	More complex and costly to calculate; still an absolute measure, so less useful for comparing very different-sized units

Practical choice

·                  Use ROI when management needs a simple, size-neutral indicator of how efficiently capital generates profit—for example, comparing a retail division with a manufacturing division, or monitoring progress against a target ROI. Its DuPont breakdown also shows whether performance is driven by margin, asset turnover, or both.

·                  Use RI when the priority is to ensure managers accept all investments that exceed the firm’s required return. For example, if a division earns 18% and a new project offers 14%, ROI may fall and the manager may reject it; under RI, the project should be accepted if its return exceeds the 10% cost of capital.

·                  Use EVA when the enterprise wants to link divisional performance directly to shareholder wealth and reduce distortions from conventional accounting. It is especially useful where intangible investments—R&D, brand-building, staff development—create benefits over several periods but would otherwise depress short-term reported profit.

Two ways to use financial measures effectively

1.              Match the measure to controllable responsibility and capital risk. Evaluate a manager using only income and assets the manager can influence; use controllable profit and controllable investment for managerial evaluation, while traceable or divisional figures may be more appropriate for evaluating the division itself. Set division-specific required returns or WACCs where risk differs, rather than applying one uniform hurdle rate mechanically.

2.              Use financial measures within a balanced, multi-period system. Do not rely on ROI, RI, or EVA alone: combine them with non-financial indicators such as customer satisfaction, quality, innovation, employee capability, and market position. Also assess investments over their full benefit period, using average capital employed where appropriate, to avoid punishing managers for short-term capital expenditure that creates long-term value.

3.              A useful rule of thumb is: ROI for comparison, RI for investment-centre decision alignment, and EVA for shareholder-value-focused economic performance—but all three should be interpreted alongside non-financial and long-term indicators