PhenomenonGoals, proxies & incentives · Cognitive Bias · Entry 123
Surrogation – when a performance measure starts replacing the goal
Surrogation is a management-accounting construct in which a performance measure starts to be treated as though it were the strategic objective it was meant to represent. A KPI can be useful and still capture only part of the underlying goal. The problem begins when improving the number becomes evidence, by itself, that the real objective improved.
Where can it show up?
- KPI reviews: a team celebrates a stronger score without checking whether customer value, quality, safety, learning, or another underlying objective improved.
- Incentives: people change operational decisions to improve a rewarded measure even when important unmeasured dimensions get worse.
- AI and analytics: a benchmark, model score, dashboard metric, or automated rating becomes the thing being optimized instead of a proxy that still needs validation against the real objective.
A better check
- Write the underlying objective before discussing the metric.
- State what the measure captures and at least one important dimension it misses.
- Ask what action could improve the number while making the real objective worse.
- Use companion measures, validation evidence, or a short narrative explanation when one score cannot represent the whole construct.
- Do not treat Surrogation as a synonym for every metric problem. The research is specifically about replacing a construct with its performance measure in strategic performance systems.
Evidence review
supported in strategic performance-measure settingsWhat the evidence supports
Surrogation is a domain-specific management-accounting construct: a measure that was designed to represent a strategic objective can start to be treated as though it were the objective itself. It is closely related to metric fixation and proxy problems, but those broader labels should not be treated as exact synonyms without checking the setting and mechanism.
How researchers describe the pattern
Strategic performance systems translate hard-to-measure constructs into observable measures. Experiments show that managers can lose sight of the underlying construct and act as if the measure itself were what matters. The literature also provides boundary conditions and interventions: involvement in strategy selection and opportunities to explain decisions narratively can reduce surrogation in studied settings.
Practical interpretation
For every important KPI, write the construct it is meant to represent and at least one important dimension it does not capture. During reviews, discuss the goal before the metric and require a short explanation for major metric-driven decisions. If optimizing the number can make the underlying goal worse, the proxy needs an explicit guardrail or companion measure.
Reviewed sources
- Strategy Selection, Surrogation, and Strategic Performance Measurement Systems management-accounting experiments · 2013 · DOI 10.1111/j.1475-679X.2012.00465.x
- Decreasing Operational Distortion and Surrogation Through Narrative Reporting experiment · 2019 · DOI 10.2308/accr-52277
Editorial review: 2026-08-18. Evidence status describes this entry, not every study ever published on the topic.