Economic Forces • 7 implied HN points • 05 Feb 26
- Production relies on complementary tasks, so a few high-quality workers can boost output far more than many low-quality workers; quality isn’t a simple substitute for quantity, which leads skilled workers to cluster and earn much more.
- Intermediate goods create powerful multiplier effects across the economy—better inputs like electricity or transport raise productivity everywhere—but when these inputs are complements, the weakest link can cap overall output and help explain big rich–poor gaps.
- AI’s growth impact hinges on whether it substitutes for or complements other inputs; if many tasks remain hard to automate and are complementary, they become weak links that limit explosive growth and prevent the capital share from soaring to 100%.