Path Dependence, Endogenous Innovation, and Growth*
构建了一个内生创新与增长模型，其中技术变革具有路径依赖性，历史技术发展模式决定未来变革速度，并解释了技术锁定和领导权周期。
The article presents a model of endogenous innovation and growth, in which technological change is path dependent. The historical pattern of technological development plays a central role in determining the pace of future technological change. Path dependence is explained using a distinction between fundamental and secondary knowledge. The economy moves endogenously between periods of drastic and nondrastic innovation. Technological lock‐in is shown to be a special case of path dependence. The model provides a rationale for cycles in technological leadership. This rationale exists in equilibria with positive levels of fundamental research and in a world with no imitation.