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Support Taper Plan

Staged-withdrawal method — instantiates Source–Sink Viability Management

A staged glide-path for reducing or ending support, paced to the sink's response and bounded by a do-no-harm guardrail, so withdrawal is a controlled landing rather than a cliff.

The Support Taper Plan is the method for ending or reducing support without triggering the collapse that abrupt withdrawal would cause. Where the agreement decides that support should wind down and by when, the Taper Plan works out how: a phased reduction schedule, governed by an adaptive rule that slows, pauses, or resumes the taper according to how the sink actually responds, and bounded by a guardrail that forbids withdrawing faster than the sink can adapt. Its defining move is coupling the reduction to a recovery or conversion pathway — the taper is not merely subtraction but the supply-side half of a transition in which the sink is meant to reach self-sufficiency (or be deliberately converted to a smaller, viable form) as the support falls away.

Example

A foundation has funded a community health nonprofit for four years at a level covering most of its budget — a classic dependency. The foundation's strategy was always to seed, not sustain, so it builds a Support Taper Plan rather than cutting the grant at term's end. The plan steps funding down — 100% → 75% → 50% → 25% over three years — but the steps are adaptive: each reduction is gated on the nonprofit hitting an earned-revenue milestone (a services contract, a membership base), and a missed milestone pauses that step rather than proceeding through it. A withdrawal guardrail sets a floor the taper may not cross in any single year (no cut deeper than 25 points) and a hard stop if core services would fall below viability, protecting the people the nonprofit serves from the foundation's exit. And the whole taper is coupled to a conversion pathway: as grant money falls, the nonprofit is helped to stand up the earned-revenue engine that replaces it. The plan turns "the grant ends in year four" from a cliff into a monitored descent with a place to land.

How it works

  • Phased, not abrupt. Support steps down in bounded increments over a stated schedule, never in a single drop — the schedule is the spine of the plan.
  • Adaptive gating. Each step is conditioned on the sink's response: hit the recovery milestone and the taper proceeds; miss it and the step pauses, slows, or (rarely) reverses. The taper reacts to evidence, not just the calendar.
  • Do-no-harm guardrail. A floor on how fast support may fall and a hard stop tied to the sink's viability threshold, so the exit cannot itself push the sink (or its dependents) below survival.
  • Coupled recovery / conversion path. Every reduction is matched to a step in the sink's route to self-sufficiency or to a smaller viable form, so capacity replaces support as it withdraws.

Tuning parameters

  • Taper speed and step size — how much support is removed per period; faster frees resources sooner but risks overrunning the sink's ability to adapt.
  • Adaptivity — how strongly each step is gated on the sink's response, from a fixed schedule to fully milestone-driven; more adaptivity is safer but less predictable for both sides.
  • Guardrail floor — the maximum permissible cut and the hard-stop threshold; a tight floor protects the sink but can stretch the exit indefinitely.
  • Reversibility — whether a missed milestone merely pauses the taper or can restore prior support; reversibility reduces harm but weakens the credibility of the exit.
  • Coupling tightness — how firmly reductions are tied to recovery milestones; tight coupling ensures capacity replaces support but can stall the whole taper on one lagging pathway.

When it helps, and when it misleads

Its strength is making exit safe and credible at once — avoiding the benefits-cliff harm of a hard cut-off[1] while still committing to a real reduction, and using the taper's pace as leverage to build the recovery it is timed against. Its failure modes pull in opposite directions. Too rigid, and the schedule marches on through a genuine setback and pushes the sink below viability — the very harm the plan exists to prevent. Too adaptive and reversible, and every missed milestone extends the support, so the taper never actually ends and dependency quietly becomes permanent under the cover of "we're tapering." The classic misuse is a taper announced for optics, its floor and reversibility set so generously that no real reduction ever occurs — or its mirror, an abrupt cut dressed up as a "taper" with two token steps. The discipline is to fix the guardrail and the end-state in advance, gate steps on evidence of recovery rather than good intentions, and hold the coupled pathway — support and self-sufficiency move together, or the plan is failing.

How it implements the components

The Support Taper Plan fills the managed-exit components — the machinery that reduces support without collapse — and only those:

  • adaptive_support_rule — the rule that adjusts each reduction step up or down according to the sink's measured response.
  • withdrawal_impact_guardrail — the floor on taper speed and the hard stop tied to viability that keep the exit from causing the harm it is meant to avoid.
  • sink_recovery_or_conversion_pathway — the recovery/conversion route each reduction is coupled to, so capacity replaces support as it withdraws.

It does NOT set the standing rationale or the decision that support should end — that's the Support Flow Agreement — nor does it define the minimum ongoing support a retained sink needs, which is the Minimum Support Schedule's job.

Notes

A Taper Plan drives support toward zero (or a smaller viable form) along a glide-path; a Minimum Support Schedule computes the floor of support a sink that is being deliberately kept needs indefinitely. They meet when a taper is meant to land not at zero but at a permanent minimum — at which point the Taper Plan hands off to the Minimum Support Schedule.

References

[1] A benefits cliff (or cliff effect) is the harm and perverse incentive created when support is withdrawn abruptly at a threshold, leaving the recipient worse off than before crossing it; tapering exists precisely to convert such a cliff into a gradual, survivable slope. ↩