Planet Money explores why Brazil’s industrialization strategy in Manaus failed to lift the country out of the "middle-income trap." Hosts Jeff Guo and Luis Gaio examine how tax incentives created a manufacturing hub that remains dependent on subsidies rather than innovation. Economists Homi Kharas and Mayara Felix discuss the global challenge of transitioning from low-wage assembly to high-value production. The episode suggests that future growth may lie in unique sectors like advanced agriculture and biodegradable plastics.