Vintage Human Capital, Growth, and the Diffusion of New Technology
构建了一个年代人力资本模型，其中每种技术需要特定年代的技能，分析了稳态下技能工人分布的峰值特征，并解释了技术扩散的滞后现象。
The authors develop a model of vintage human capital in which each technology requires vintage-specific skills. They examine the properties of a stationary equilibrium for their economy. The stationary equilibrium is characterized by an endogenous distribution of skilled workers across vintages. The distribution is shown to be single-peaked. Under general conditions, there is a lag between the appearance of a technology and its peak usage, a phenomenon known as diffusion. An increase in the rate of exogenous technological change shifts the distribution of human capital to more recent vintages, thereby increasing the diffusion rate. Copyright 1991 by University of Chicago Press.