Marginal benefit is the change in expected value from one defined increment. A second approval step might reduce expected loss from unauthorized payments, improve compliance evidence, or delay valid payments. The benefit side includes only favorable consequences relevant to the stated objective; the delay belongs on the cost side or as a separate constraint.
Value need not be immediate cash. It may be expected loss avoided, time saved, information gained, flexibility preserved, or another outcome the decision maker has justified. Converting unlike outcomes into one monetary value requires additional assumptions, especially when consequences fall on different people.
Incremental, not average
The average benefit of all existing reviews does not reveal the benefit of one more review. Earlier units may have addressed the highest-risk items first, so the next unit can provide less value. In another setting, network or learning effects can make a later increment more valuable. The direction is an empirical or model assumption, not part of the definition.
An observed improvement after an increment does not automatically equal the marginal benefit caused by it. Attribution requires a credible counterfactual: what would have happened without that increment?
Put the concept to work
Apply this concept
- Identify and justify the expected benefit attributable to one specified increment, separating it from total benefit, average benefit, transfers, and unchanged outcomes.
Learning resources
Choose a lesson, try an application, or inspect the sources behind this concept.
Build on these ideas
- Marginal analysis — Apply
To apply this concept: Required. Marginal benefit is defined relative to the baseline and increment used in the marginal comparison.