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tegwick 574bb11db6 feat(example): add supply-chain-vsm composition demo (S3.5)

Demonstrates infospace composition: the Wealth of Nations infospace is
used as a discipline, applying Smith's economic framework as a lens to
analyse modern supply chain management concepts.

New example: examples/supply-chain-vsm/
- infospace.yaml binding WoN as discipline (../infospace-with-history)
- 3 source documents: coordination mechanisms, capital & inventory,
  market structure (~400 words each, original content)
- supply-chain-entity-schema-v1.0.md with WoN Concept required section
- won-mapping-schema-v1.0.md with Conceptual Continuity rating
- artifacts/won-reference/core-entities.md — 12 curated WoN entities
  for injection as discipline context
- 8 hand-crafted entity files demonstrating LLM output format
- 3 mapping files with full rationale and VSM inheritance chains
- Viable: YES (5/5 thresholds)

Key mappings demonstrated:
  Demand Signal          → Effectual Demand        (Strong, S2)
  Vendor-Managed Inventory → Division of Labour    (Strong, S1/S2)
  Just-in-Time Inventory → Circulating Capital     (Strong, S1/S3)
  Bullwhip Effect        → Natural Price           (Moderate, S2)
  Platform Intermediary  → Merchant Capital        (Strong, S2/S4)
  Monopsony Power        → Combination of Masters  (Strong, S3*)

Platform fix: entity_parser.py now recognises ## Supply Chain Domain
as a domain alias for ## Economic Domain, enabling composed infospaces
to use their own domain section name.

Tutorial §13 rewritten with real commands, real output, and the full
mapping table from the demo.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

2026-02-23 00:08:51 +01:00

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Single-Source Dependency

Definition

A supply chain condition in which a buyer relies on one supplier for a critical component or material with no readily substitutable alternative. Single-source situations arise from supplier specialisation, geographic concentration of competent producers, or deliberate buyer policy maximising scale economies with a preferred partner. During disruptions, a single-sourced supplier in a critical category temporarily possesses monopoly-like pricing power, as the buyer has no alternative and demand is inelastic in the short run.

Source

Market Structure in Modern Supply Chains, §Market Concentration and Single-Source Dependencies

Supply Chain Domain

Risk

VSM Assignment

S4 — Single-source dependency is an intelligence failure at the S4 level: the supply chain's environmental scanning has not identified and mitigated the concentration risk. Resolving it requires S4 action — supplier development, geographic diversification, or technology substitution.

WoN Concept

Monopoly in Trade — Smith argues that monopolists charge the highest price buyers will bear, and that this price is always above the competitive level. A single-source supplier during a supply disruption is a temporary monopolist: buyers cannot immediately switch, demand is inelastic, and the supplier can extract above-normal prices. Smith's analysis of how monopoly restricts supply and raises price applies directly to the disrupted single-source scenario, even though in normal conditions the same supplier may operate competitively.

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