72 lines
3.9 KiB
Markdown
72 lines
3.9 KiB
Markdown
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# Market Structure in Modern Supply Chains
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## Platform Intermediaries
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A platform intermediary in a supply chain context is a company that does
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not itself produce or consume goods but instead controls the infrastructure
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through which buyers and sellers transact. Platform intermediaries include
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e-commerce marketplaces (Amazon, Alibaba), logistics platforms (Flexport,
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FreightOS), and procurement networks (Coupa, Ariba). Their value lies not
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in physical capital but in network effects: the platform becomes more
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valuable to each participant as the total number of participants grows.
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Platform intermediaries extract value by charging transaction fees, selling
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data analytics, providing financing, or leveraging their position to capture
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margin that previously accrued to producers or carriers. Their market power
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derives from control of the matching infrastructure: a seller who abandons
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the platform loses access to the buyer network; a buyer who abandons the
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platform loses access to the supplier network.
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Unlike traditional merchant intermediaries — who bought and sold goods,
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bearing inventory risk — platform intermediaries transfer inventory risk to
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the counterparties. The platform earns commission on each transaction but
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holds no stock; the asymmetry concentrates profit in the intermediary while
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concentrating risk in producers and carriers.
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## Monopsony and Buyer Power
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Monopsony is market power on the buyer's side: a situation in which a
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single buyer (or a small number of buyers acting in concert) faces many
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sellers. In supply chains, monopsony manifests when a large retailer or
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manufacturer is the dominant customer for a category of suppliers. The
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buyer's ability to credibly threaten to switch suppliers — or to reduce
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purchase volumes — gives it negotiating leverage that suppliers cannot
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easily counter.
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Buyer power is exercised through price pressure (demanding lower unit costs
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in each contract renegotiation), terms pressure (extending payment terms,
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imposing fines for delivery failures), and specification creep (adding
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requirements without cost compensation). Suppliers facing strong buyer power
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are systematically squeezed: their margins decline, their ability to invest
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in quality and capacity is constrained, and their bargaining position
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deteriorates further as the buyer grows.
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The long-run consequence of sustained monopsony pressure is supplier
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consolidation — weaker suppliers exit, leaving the buyer with fewer but
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larger suppliers — and supply fragility, as the surviving suppliers have
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insufficient margin to hold safety stock or invest in resilience.
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## Market Concentration and Single-Source Dependencies
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Single-source dependency occurs when a supply chain relies on one supplier
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for a critical component or material with no readily substitutable
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alternative. Single-source situations arise from supplier specialisation
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(only one firm has the required capability), geographic concentration (all
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competent suppliers are in one region), or deliberate buyer policy (choosing
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the best supplier and extracting maximum scale economies).
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Single-source dependencies concentrate supply chain risk. When a
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single-sourced supplier fails — due to fire, flood, earthquake, insolvency,
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or geopolitical disruption — the buyer has no immediate alternative. The
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semiconductor industry exemplifies this: certain advanced logic chips can
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only be produced by one or two foundries globally, making entire sectors
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of the world economy dependent on the operational continuity of a small
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number of facilities in Taiwan and South Korea.
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From a market structure perspective, single-source suppliers possess
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temporary monopoly power: during a supply disruption, they can charge
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prices far above their normal level, because no substitute exists. Smith's
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analysis of monopoly price — that it is the highest that can be squeezed
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from buyers — applies directly: a disrupted single-source supplier in a
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critical category faces demand that is inelastic in the short run.
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