Middle-Income Trap

Middle-income trap is the development problem introduced to the wiki through The giant factory town that might be a giant mistake. Homi Kharas describes it as the point where countries have grown out of low-income status but then struggle to keep converging with rich economies.

The trap exists because the old ladder can break in the middle. Low wages and basic infrastructure can attract simple manufacturing, but once wages rise, a country may become too expensive for the cheapest factory work while still lacking the universities, firms, institutions, export discipline, and innovation capacity needed for frontier production.

Key Claims

• The old recipe was roads, schools, infrastructure, factory jobs, skill upgrading, higher wages, and eventual movement into advanced production and services.
• Some economies such as South Korea / 韩国 and Singapore escaped into high-income status, but the source treats those successes as exceptional rather than automatic.
• Brazil illustrates the trap because Manaus has factories and jobs but remains dependent on imported components and subsidies.
• The trap is intensified by Premature Deindustrialization, where manufacturing stops absorbing labor before a country becomes rich.
• Possible exits may come from Advanced Agriculture Innovation, Localized Innovation Advantage, and other productivity gains beyond copying old manufacturing powers.

Connections

• Homi Kharas and World Bank - economist and institutional context.
• Brazil, Manaus, and Zona Franca de Manaus - source case.
• Subsidized Assembly Industrialization and Industrial Subsidy Dependence - factory-model limits.
• Protected Domestic-Market Industrialization and Premature Deindustrialization - strategic failure modes.