Purpose
The article constructs dependency power measurement as the fifth component of bounded interdependence — the structural mechanism for detecting, quantifying, and capping the accumulation of dependency within cooperative frameworks. This sidebar operationalizes that component as a diagnostic matrix: a structured tool for evaluating lock-in risk across the three dimensions the article identifies.
The matrix is not a formula. It is a structural map that cooperative designers, evaluators, and participants can use to identify where dependency is concentrating and whether it has crossed the threshold from ordinary structural friction into a severe, self-inflicted design liability — a high-switching-cost, low-competitive-pressure state, not a rights violation in itself.
Three Dimensions of Lock-In
| Risk Level | Indicator | Structural Meaning |
|---|---|---|
| Low | Switching costs stable or declining over time; data portable; credentials independent | Participation remains voluntary by architecture |
| Moderate | Switching costs rising but bounded; some data portability gaps; credentials partially institution-dependent | Participation is voluntary but trending toward friction |
| High | Switching costs accelerating; data locked in proprietary formats; credentials non-transferable | High switching cost, thinning competitive pressure — participation is formally voluntary but increasingly costly to exercise |
| Critical | Cost of exit exceeds benefit of remaining; departure entails loss of professional identity, data, or standing | Quiet enclosure achieved — the arrangement has become the most expensive option in its own market, sustained by switching cost rather than by merit |
The diagnostic question: Is the cost of leaving rising faster than the value of staying? If yes, the arrangement is converging on lock-in regardless of whether anyone intended it.
| Risk Level | Indicator | Structural Meaning |
|---|---|---|
| Low | Multiple independent paths for critical functions; no single node controls essential access | Power distributed; no structural leverage point |
| Moderate | Some functions routed through limited nodes; alternatives exist but require effort to reach | Power concentrating; contestability still available |
| High | Critical functions controlled by one or two nodes; alternatives technically exist but are impractical | Chokepoint dependency established; contestability nominal |
| Critical | Single node controls access, credentialing, or data custody; no viable alternative path | Monopoly chokepoint — the node's terms are the system's terms |
The diagnostic question: Can any single node, by withdrawing or changing its terms, make the cooperative arrangement unworkable for other participants? If yes, that node holds dependency power whether it exercises it or not.
| Risk Level | Indicator | Structural Meaning |
|---|---|---|
| Low | Multiple comparable alternatives available; switching costs bounded; interoperability maintained | Exit is meaningful — the participation constraint is genuinely testable |
| Moderate | Some alternatives exist but with reduced capability or coverage; switching involves measurable friction | Exit is available but costly — the participation constraint may be satisfied by default rather than by design |
| High | Few alternatives; those that exist are significantly inferior or serve different markets | Exit is nominal — the participant has the right to leave but nowhere comparable to go |
| Critical | No viable alternative; the cooperative arrangement is the only path to essential services, credentials, or markets | Exit right is decorative — formally available, practically pointless to exercise |
The diagnostic question: If a participant exercises their exit right today, can they achieve a comparable outcome elsewhere within a reasonable time frame? If not, the exit right exists in form but not in substance.
Reading the Matrix
The three dimensions interact. A cooperative arrangement with moderate switching costs, low chokepoint concentration, and high alternative viability is structurally sound — lock-in risk is manageable. A cooperative arrangement with high switching costs, high chokepoint concentration, and low alternative viability has achieved the structural conditions for quiet enclosure even if no single dimension has reached the critical threshold independently.
The matrix is a periodic diagnostic, not a one-time assessment. Lock-in risk changes as cooperative arrangements mature — switching costs accumulate, chokepoints consolidate, alternatives appear or disappear. bounded interdependence recommends that the assessment be built into the cooperative framework's governance cycle, not performed only when a participant complains — not because the framework is owed a clean bill of health, but because a builder who waits for the complaint has already paid the reputational cost the measurement was meant to avoid. By the time a participant recognizes that they are locked in, the structural conditions for lock-in have already been established — the diagnosis must come before the symptom.
Change Log
- 18 Aug 26 — Removed language describing severe lock-in as "architectural coercion" or "structural captivity." Reframed the Purpose section, the Switching Cost Accumulation table's Critical row, and the Reading the Matrix section's closing rationale in terms of design-risk severity rather than force or captivity.
- 14 Mar 26 — Initial draft created. Structural Map sidebar for (1.2.6). Lock-in risk matrix operationalizing dependency power measurement across three dimensions: switching cost accumulation, chokepoint concentration, and alternative viability. Four-level risk scale with structural meaning and diagnostic questions.