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Platform Access Rule

Admission-and-removal rule — instantiates Network Effect Governance

Defines the published conditions under which each side can join, list, sell, or build on a platform — and be removed — so access turns on stated criteria rather than the operator's discretion.

A Platform Access Rule governs admission and removal by published criteria — the eligibility gate on a network where being connected is often the difference between having a livelihood, a voice, or a market and not. When access is that consequential, the gap between legitimate curation and arbitrary gatekeeping is whether the conditions are stated in advance and applied evenly. Its defining move is to fix the ex-ante criteria — who may join each side, what they must meet, and what gets them removed — so participants can rely on rules rather than the operator's mood. It sets the standard; it is not the channel to contest a specific decision, and not the system that hunts for abuse.

Example

A home-services marketplace connects homeowners with contractors, and for a contractor a listing is a pipeline of jobs. Its access rule is published: to join, a contractor must verify a trade license and insurance and maintain a rating floor; onboarding steps are spelled out; removal follows defined criteria such as repeated no-shows or safety violations. Because the criteria are stated and applied uniformly, a good contractor isn't dropped on a whim that would tank their income, and homeowners can trust that a listed pro cleared a real bar — the marketplace's quality, the thing that makes it worth using, is protected without the gate becoming a weapon.

How it works

  • Published eligibility per side. Clear criteria for each participant class (buyers, sellers, developers), known before anyone applies.
  • Onboarding and verification. The steps and checks required to join, proportionate to the stakes of participation.
  • Conduct and service expectations. The standards a participant must keep to stay in good standing.
  • Defined removal criteria. The specific grounds for suspension or removal — stated, not improvised — with non-discrimination and only narrow safety carve-outs.

Tuning parameters

  • Eligibility strictness — an open door maximizes liquidity but admits bad actors; tight curation protects quality but can starve the network and entrench incumbents.
  • Verification burden — heavier checks raise trust but deter legitimate newcomers.
  • Non-discrimination vs safety exceptions — how broad the carve-outs are; wide "safety" exceptions can swallow the rule.
  • Removal-criteria clarity — how precisely grounds for removal are specified versus left to discretion.
  • Per-side asymmetry — whether one side (e.g. sellers) faces a far higher bar than the other.

When it helps, and when it misleads

Its strength is that it prevents arbitrary gatekeeping exactly where access equals livelihood, while protecting the quality and liquidity that make the network worth joining. Its failure modes are criteria that entrench incumbents or discriminate under a neutral-sounding veneer, over-curation that starves the network of participants, and "safety exceptions" broad enough to justify any exclusion. The classic misuse is writing access criteria to exclude a competitor's complementors while claiming neutral standards — an echo of the common-carrier non-discrimination principle read in reverse.[1] The discipline is to publish the criteria, apply them uniformly, keep exceptions narrow, and pair the rule with an appeal so a denied participant can test whether the criteria were really met.

How it implements the components

  • access_policy — it is the admission, suspension, service-level, and non-discrimination rule defining who may participate and on what terms.
  • network_value_invariant — admission and conduct standards protect the marketplace quality and liquidity that must remain valuable, so the gate serves the network rather than throttling it.

It sets the criteria but doesn't adjudicate a disputed denial — that's Appeal and Dispute Process — nor hunt for abuse among admitted participants (that's Moderation and Abuse Response), nor govern export when someone leaves (that's Data Portability Rule).

Notes

An access rule sets criteria but does not resolve disputes over them — without an appeal path it is discretion with extra steps, and without published criteria it is just discretion. Its legitimacy comes from being both stated and evenly applied; drop either and it stops protecting participants and starts protecting the operator.

References

[1] The common-carrier principle — that a provider of essential shared infrastructure must serve all comers on non-discriminatory terms — is the legal lineage behind non-arbitrary platform access. It is invoked here as the standard this mechanism approximates, not as a claim that any given platform is legally a common carrier. ↩