Contribution Net-Value Review¶
Valuation model — instantiates Net-Additive Contribution Intake
Weighs a contribution's expected benefit against its full lifetime coordination cost to judge whether it is genuinely net-additive — and recommends accept, reshape, redirect, defer, or decline.
Most intake decisions go wrong by comparing an offer's benefit against a cost of zero — it was donated, so it looks free. Contribution Net-Value Review is the assessment that refuses that framing. It prices the full lifetime coordination cost — evaluation, translation, supervision, integration, compliance, maintenance, eventual retirement, and the primary work displaced along the way — and sets it against benefit that is scored for marginal value: what the offer adds to the whole net of what the whole already has. Its defining move is that additivity is a difference, not a level. A genuinely good contribution that duplicates something you already run is not additive; a modest one that fills a real gap is. The output is not a grade but a disposition — accept, reshape, redirect, defer, or decline — because the point of pricing the offer is to decide what to do with it.
Example¶
A mid-sized regional history museum is offered a private collector's estate: several hundred objects, "free," with the family hoping the whole lot stays together. The curator runs a net-value review rather than a thank-you. On the benefit side, perhaps three items are genuinely rare and fill gaps in the museum's holdings. On the cost side sits everything the boundary hides: cataloguing hundreds of objects, conservation of the fragile ones, climate-controlled storage the museum is already short on, insurance, and the near-certainty of deaccessioning the ~80% that duplicates what it owns — a slow, legally fraught, reputation-sensitive process.
Scored net of redundancy, the collection is mostly not additive: three objects of real value carried on top of a decades-long storage-and-disposal liability. The review's disposition is not "decline" but reshape — accept the three items outright, redirect the remainder to a historical society whose collection they would genuinely complete, and decline the "keep it together" condition. What made that possible was refusing to treat donated as free.
How it works¶
- Trace the cost past the boundary. The visible cost is intake; the real cost is the lifetime — supervision, integration, maintenance, and the retirement or removal cost when the contribution is eventually wound down. The model's job is to surface the costs that only appear after acceptance.
- Score marginal, not absolute, value. Credit the offer for what it adds beyond current holdings, capabilities, or coverage. Redundant excellence scores low; a smaller offer that closes a real gap scores high.
- Net the two and pick a disposition. Benefit-minus-full-cost maps to one of five moves. A positive but conditional result becomes reshape; a good offer aimed at the wrong recipient becomes redirect; genuine uncertainty becomes defer (often into a trial).
Tuning parameters¶
- Cost horizon — one-time intake cost versus full lifetime including maintenance and retirement. Short horizons systematically flatter donated offers; the longer the horizon, the more hidden burden surfaces.
- Redundancy threshold — how much overlap with existing holdings before value is discounted. Set it loose and you hoard duplicates; set it tight and you may decline a marginal-but-real gap-filler.
- Displacement weighting — how heavily to price the primary work the coordinator gives up to absorb this. The scarcer the coordinator, the higher this weight should run.
- Disposition granularity — a blunt accept/decline, or the full five-way rule. Finer granularity rescues good-but-misaimed offers via reshape and redirect instead of a flat no.
When it helps, and when it misleads¶
Its strength is dragging the hidden coordination cost into the same ledger as the benefit, which is exactly the comparison a grateful "yes" skips. It is what lets a system say a disciplined no to a good offer that simply isn't additive, and it converts gratitude into a decision the receiving system can actually staff.
Its failure modes cluster around what resists pricing. The benefits that matter most — goodwill, a relationship with a donor, strategic optionality — are the hardest to quantify, so a tidy net figure can lend false precision to a judgment that is mostly qualitative. Redundancy and displacement are routinely under-counted because they live in other people's calendars. And like any valuation it is easily run backwards — assembled to justify a decision already made rather than to test one. The discipline that keeps it honest is to score marginal contribution against the whole[n1], carry the un-priceable factors as named uncertainties rather than dropping them, and let a genuinely uncertain result trigger a trial instead of a verdict.
How it implements the components¶
Contribution Net-Value Review realizes the evaluation-and-decision core of the archetype — the components that turn an offer into a judgment:
net_additivity_test— scores the offer for marginal, non-redundant value: what it adds to the whole net of what already exists.full_coordination_cost_model— enumerates and sizes the lifetime cost the boundary hides: evaluate, integrate, supervise, comply, maintain, retire, and displace.accept_reshape_redirect_defer_decline_rule— converts benefit-minus-full-cost into one of the five dispositions the appraisal acts on.
It does not run the reversible trial that resolves a "defer" (Bounded Contribution Pilot), secure the accountable owner and budget the "accept" requires (Sponsor-Required Acceptance Protocol), or write the working terms an accepted contribution runs under (Contribution Onboarding Packet).
Related¶
- Instantiates: Net-Additive Contribution Intake — this review supplies the net-value judgment the rest of the intake hangs on.
- Sibling mechanisms: Bounded Contribution Pilot · Sponsor-Required Acceptance Protocol · Contribution Onboarding Packet · Post-Integration Contribution Review · Requested Contribution Menu · Material Donation Acceptance List · Side-Channel Redirect Notice · Pre-Screening Form
Editorial Notes¶
Form Classification¶
Form family: Analysis, Modeling & Optimization
Rationale: The model computes marginal benefit against full lifetime supervision, integration, maintenance, and retirement cost and maps the net result to a recommendation, so its operative form is valuation analysis.
Nearest alternative: Decision, Gate & Allocation — The model recommends accept, reshape, redirect, defer, or decline, but it stops at decision support and does not itself admit or allocate the contribution.
Review outcome: Adjudicated after independent review; high confidence.
Origin Attribution¶
Primary origin: Economics & Finance
Origin pattern: Cross-disciplinary synthesis
Present-day reach: Multi-domain
Rationale: Economics supplies marginal net-benefit and opportunity-cost reasoning; accounting, operations research, and management convert it into a lifecycle contribution disposition review.
Related originating lineages:
- Accounting & Auditing — Lifecycle costing contributes explicit integration, maintenance, compliance, and retirement costs.
- Operations Research — Decision analysis supplies structured comparison of accept, reshape, redirect, defer, and decline options under resource constraints.
- Organizational & Management Science — Portfolio governance supplied accept, reshape, redirect, defer, and decline decisions.
Review resolution: The decisive operation is incremental net-benefit judgment after opportunity and lifecycle costs, making economics the primary lineage. Accounting supplies full lifecycle cost capture, operations research supplies structured option comparison, and organizational management supplies dispositions and coordination-burden review. OMB and GAO guidance directly support incremental net benefits, opportunity cost, comprehensive lifecycle accounting, and decision review.
Encyclopedia synthesis: The exact catalogued form synthesizes established practice rather than reproducing a single standard historical label.
Review outcome: Researched adjudication after independent review; high confidence.
Sources consulted:
Notes¶
The review recommends; it does not bind resources. A "yes" here is a value case, not a commitment — until a named owner accepts the coordination and lifecycle burden (Sponsor-Required Acceptance Protocol), an accepted-on-paper contribution is still an unfunded obligation. Keeping the value judgment separate from the ownership commitment is what stops a strong net-value score from quietly becoming work no one agreed to do.
[n1] In cooperative game theory the Shapley value scores a participant by its average marginal contribution across the coalitions it could join — the value it adds beyond what the group already has, not its value in isolation. A net-additivity test applies the same instinct to intake: an offer earns credit for the gap it closes, and a duplicate of something you already run adds little however good it is on its own. ↩