tegwick
574bb11db6
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>
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Coordination Mechanisms in Modern Supply Chains
Demand Signals and Information Flow
Supply chains coordinate through the propagation of demand signals upstream from end consumers through retailers, distributors, and manufacturers to raw material suppliers. The quality and latency of these signals determine how well production is synchronised with actual consumption.
In a well-functioning supply chain, a retailer's point-of-sale data becomes the input signal for a distributor's replenishment order, which in turn signals the manufacturer to schedule production runs. When this chain operates with full transparency and zero delay, production closely tracks consumption. When it operates with delays, batching, or information filtering, coordination failures emerge.
The Bullwhip Effect
The bullwhip effect describes the amplification of demand variability as signals travel upstream in a supply chain. A 5% fluctuation in retail demand may translate into a 20% fluctuation in distributor orders and a 40% swing in manufacturer production schedules. This amplification occurs because each node in the chain adds a safety buffer to its orders, reacts to the previous period's signal rather than real-time data, and places orders in discrete batches rather than continuously.
The result is a supply chain that oscillates — periods of excess inventory alternating with periods of shortage — even when underlying consumer demand is relatively stable. The bullwhip effect is not a market equilibrium; it is a coordination failure in which the absence of shared real-time information causes each rational local decision to produce irrational aggregate outcomes.
Vendor-Managed Inventory
Vendor-managed inventory (VMI) is a coordination arrangement in which the supplier, rather than the buyer, is responsible for maintaining stock levels at the buyer's location. The supplier has read access to the buyer's inventory data and automatically replenishes when stock falls below a specified threshold. Payment occurs when the buyer consumes the goods, not when they arrive.
VMI represents a reallocation of the inventory management function: the buyer surrenders operational control over a specific task (replenishment) to the party better positioned to perform it (the supplier, who controls the supply side). This specialisation of function reduces transaction costs, improves forecast accuracy (the supplier sees real consumption, not batch orders), and smooths the demand signal upstream.
Supply Chain Visibility
Supply chain visibility refers to the degree to which all participants can observe the state of inventory, orders, and shipments across the entire chain in real time. High visibility reduces the information asymmetries that drive the bullwhip effect and enables coordinated responses to disruption.
Modern visibility platforms aggregate data from tracking systems, IoT sensors, and partner APIs to provide a unified operational picture. The commercial value of visibility comes from reducing the cost of safety stock (since uncertainty is lower) and enabling faster responses to supply shocks. Visibility is not merely a technical feature; it is a coordination mechanism that changes the incentive structure for every node in the chain.