Appropriate Technology and Growth
构建了一个技术针对特定投入组合的模型，解释技术改进如何缓慢跨国扩散，并得出条件收敛的结论，比标准新古典或简单内生增长模型更贴近现实。
We model growth and technology transfer in a world where technologies are specific to particular combinations of inputs. Unlike the usual specification, our model does not imply that an improvement in one technique for producing a given good improves all other techniques for producing that good. Technology improvements diffuse slowly across countries, although knowledge spreads instantaneously and there are no technology adoption costs. However, even with “<it>Ak</it>” production, our model implies conditional convergence. This model, with appropriate technology and technology diffusion, has more realistic predictions for convergence and growth than either the standard neoclassical model or simple endogenous-growth models.