David Ricardo’s 1817 theory that nations maximize aggregate output by specializing in what they produce relatively most efficiently and trading for the rest. The proposition is mathematically sound as a statement about relative efficiency and became the theoretical foundation for two centuries of trade liberalization.

The theory’s failure mode, from a retention-economics perspective, is that it tends to lock in existing patterns of specialization. A country with a comparative advantage in raw materials is advised to remain a raw-materials exporter, foreclosing the move into the increasing-returns manufacturing activities that Erik Reinert argues are the actual mechanism of development. Comparative advantage is therefore structurally a doctrine that concentrates productive capacity in already-dominant economies. Its practical political effect during the acceleration phase of the industrial S-curve was to align peripheral factions (cotton-exporting American South, colonial raw-material extractors) with the dominant foreign power against domestic-industry advocates. This is the alignment mechanism the S-Curve Thesis takes as central.

Sources

Provenance

Borrowed from Ricardo (1817). See David Ricardo for biographical context.