Restructure entity storage from per-chapter subdirectories to a flat
canonical set in output/entities/. Each entity exists as a single file;
duplicates across chapters are detected by slug collision and skipped
(first occurrence wins). Chapter views use {{ include }} transclusion
to reference shared entity files.
Add @{existing_entities} macro to extract-entities template so the LLM
knows which entities already exist and focuses on genuinely new ones.
Refactor _call_llm() from _execute_llm() for callers that handle their
own file I/O. 41 unique entities from 4 chapters (2 duplicates removed).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
26 lines
1.6 KiB
Markdown
26 lines
1.6 KiB
Markdown
# Water-Carriage
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## Definition
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The transportation of goods by navigable rivers, canals, and sea routes. Smith identifies water-carriage as vastly superior to land-carriage in cost-efficiency, demonstrating that a ship crewed by six to eight men can transport the same quantity of goods as fifty waggons requiring a hundred men and four hundred horses. This cost advantage means that water-carriage dramatically expands the effective market available to producers, enabling finer division of labour.
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## Source Chapter
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Book 1, Chapter 3: "That the Division of Labour is Limited by the Extent of the Market"
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## Context
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Water-carriage is the chapter's primary mechanism for explaining geographic variation in economic development. Smith argues that civilisation and industry naturally arise first on sea-coasts and navigable rivers because water transport opens "a more extensive market... to every sort of industry than what land-carriage alone can afford it."
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## Economic Domain
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Exchange
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## Smith's Original Wording
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> "As by means of water-carriage, a more extensive market is opened to every sort of industry than what land-carriage alone can afford it, so it is upon the sea-coast, and along the banks of navigable rivers, that industry of every kind naturally begins to subdivide and improve itself."
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## Modern Interpretation
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This is an early articulation of how transportation costs shape economic geography. Modern trade theory and economic geography (Krugman's New Economic Geography) formalise the same insight: reductions in transport costs expand effective market size, enabling agglomeration economies and deeper specialisation.
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