Responsibility Accounting and Performance Measurement
Responsibility accounting starts from a simple organisational fact — a large company cannot be run as one undifferentiated whole — and builds a reporting system around holding each identifiable manager accountable only for what they can actually control, then measuring that accountability with the right yardstick.
1. The four types of responsibility centre
Every organisational unit within a responsibility accounting system is classified as exactly one of four centre types, based on what its manager is held accountable for.
| Centre type | Manager is accountable for | Typical example |
|---|---|---|
| Cost centre | Costs incurred only | A production department, an internal IT support team |
| Revenue centre | Revenue generated only | A sales territory office |
| Profit centre | Both revenue and costs (i.e., profit) | A product-line division selling to external customers |
| Investment centre | Profit, and the capital invested to earn it | A fully autonomous subsidiary or business unit |
The classification determines the yardstick used to judge the manager: it is meaningless to judge a cost-centre manager by "profit," since they have no control over revenue, and equally meaningless to judge an investment-centre manager by profit alone without reference to how much capital was tied up to generate it — which is exactly the gap ROI and Residual Income are built to close.
2. Return on Investment and its flaw
Return on Investment (ROI) expresses a centre's profit as a percentage of the capital invested to earn it, allowing comparison between divisions of very different sizes on a common, size-adjusted basis:
ROI's well-known flaw is that it can discourage a division from accepting a genuinely good project. If a division's current ROI is 25%, and it has the opportunity to invest in a new project earning 18% — well above the company's cost of capital, say 12% — a division manager evaluated purely on ROI has a personal incentive to reject this project.
This is because accepting it would pull the division's own average ROI down from 25% towards 18%, even though the project is clearly beneficial for the company overall (18% return well exceeds the 12% cost of capital).
3. Residual Income — the fix
Residual Income (RI) is built specifically to remove this flaw, by measuring an absolute rupee surplus rather than a percentage rate:
Under RI, the division manager from the ROI example above has every incentive to accept the 18% project, because it earns 6 percentage points above the 12% cost-of-capital charge on the capital it uses, adding a positive amount to Residual Income regardless of what it does to the division's average ROI percentage — RI measures whether a project clears the cost-of-capital hurdle in absolute terms, not whether it happens to beat the division's own historical average.
RI's own limitation is that, being an absolute rupee figure, it does not by itself allow easy comparison between divisions of very different sizes — a large division will typically show a larger RI simply because it deploys more capital, even if a smaller division is actually using its (smaller) capital more efficiently, which is exactly the comparison ROI's percentage format handles better.
4. The Balanced Scorecard — beyond financial measures alone
The Balanced Scorecard, developed by Kaplan and Norton, argues that judging performance on financial measures alone is dangerously backward-looking, since a division can show strong current profit while quietly damaging the very things — customer relationships, internal efficiency, employee capability — that will determine its financial results a year or two from now. It structures performance measurement around four linked perspectives:
| Perspective | Core question | Typical measure |
|---|---|---|
| Financial | How do we look to shareholders? | ROI, Residual Income, revenue growth |
| Customer | How do customers see us? | Customer satisfaction score, market share, retention rate |
| Internal Business Process | What must we excel at internally? | Cycle time, defect rate, process efficiency |
| Learning and Growth | Can we continue to improve and create value? | Employee training hours, employee satisfaction, innovation rate |
The four perspectives are explicitly linked in a chain of cause and effect, not treated as four independent scorecards: investment in Learning and Growth (a well-trained, motivated workforce) is expected to improve Internal Business Process performance (fewer defects, faster cycle times), which improves the Customer perspective (higher satisfaction, better retention), which ultimately drives the Financial perspective (revenue and profit).
The scorecard's real innovation is insisting that the earlier, non-financial perspectives are leading indicators of the financial results that will show up only later, rather than being treated as "soft" measures secondary to the financial numbers.
Worked Examples
Example 1. An internal IT support team is judged only on whether it keeps its operating costs within budget, with no revenue responsibility. What type of responsibility centre is this?
A cost centre.
Example 2. A fully autonomous business unit is judged on both the profit it generates and the capital tied up to generate it. What type of responsibility centre is this?
An investment centre.
Example 3. A division has controllable profit of ₹40,00,000 and capital employed of ₹2,00,00,000. Compute its ROI.
ROI = (40,00,000 ÷ 2,00,00,000) × 100 = 20%.
Example 4. Using the same division from Example 3, if the company's cost of capital is 14%, compute the division's Residual Income.
RI = 40,00,000 − (2,00,00,000 × 14%) = 40,00,000 − 28,00,000 = ₹12,00,000.
Example 5. The division from Examples 3-4 is considering a new project requiring ₹50,00,000 of additional capital, expected to earn ₹9,00,000 of additional annual profit (an 18% return on the new capital). Evaluate whether the division manager would accept this project under (a) ROI as the sole performance measure, and (b) RI as the performance measure.
(a) The project's own ROI (18%) is below the division's current overall ROI of 20%, so accepting it would pull the division's average ROI down — a manager judged purely on ROI has an incentive to reject it. (b) The project's RI contribution = 9,00,000 − (50,00,000 × 14%) = 9,00,000 − 7,00,000 = ₹2,00,000 (positive), so a manager judged on RI has an incentive to accept it, since 18% exceeds the 14% cost of capital.
Example 6. Classify each of the following measures into one of the four Balanced Scorecard perspectives: (a) average employee training hours per year, (b) customer retention rate, (c) machine downtime and defect rate, (d) Residual Income.
(a) Learning and Growth. (b) Customer. (c) Internal Business Process. (d) Financial.
Example 7. Explain, using the Balanced Scorecard's cause-and-effect logic, why a company that cuts its employee training budget to boost this quarter's reported profit could be making a mistake even if profit genuinely rises in the short term.
The Balanced Scorecard treats Learning and Growth measures (such as training) as leading indicators that flow through Internal Business Process improvements to Customer outcomes and ultimately to Financial results.
Cutting training may raise short-term reported profit by reducing cost, but if it degrades employee capability over time, it can worsen internal process performance and customer experience in later periods, ultimately damaging the very financial results the cut was meant to protect — a purely financial, single-period view would miss this delayed, cause-and-effect risk entirely.
Summary
Responsibility accounting classifies every organisational unit into one of four centre types — cost, revenue, profit, investment — based on what its manager is genuinely accountable for, and judges each with the yardstick appropriate to that accountability.
ROI expresses profit as a percentage of capital employed, allowing size-adjusted comparison, but can perversely discourage a division from accepting a genuinely good project that would lower its own average ROI even while exceeding the cost of capital. Residual Income fixes this by measuring an absolute rupee surplus above a cost-of-capital charge, correctly rewarding any project that clears the hurdle, though it loses ROI's easy cross-division size comparability in exchange.
The Balanced Scorecard extends performance measurement beyond financial figures alone to four linked perspectives — Financial, Customer, Internal Business Process, and Learning and Growth — treating the three non-financial perspectives as leading indicators of financial results that will only appear later, rather than as secondary, "soft" measures.
