01 · The discovery
The idea, in everyday language
An invention can improve life once. Sustained growth requires a continuing flow of better methods and products. Mokyr investigated the historical conditions that let scientific understanding and practical know-how keep reinforcing each other.
Aghion and Howitt developed a theory of growth through creative destruction: an innovation improves productivity but can displace an older technology and its producer. The promise of a temporary advantage encourages research, while later inventions keep the process moving.
Why it matters
The work helps frame questions about research, competition and how societies support people affected by technological change.
