Endogenous Technological Change and Wage Inequality
微观研究显示研发与技能溢价正相关，但美国近期工资不平等加剧伴随生产率增长放缓和新技术引入缓慢。本文用内生技术变革模型解释这一矛盾，认为吸收能力分布不均导致上述现象，并评估劳动质量增速下降能否同时解释生产率放缓和工资不平等上升。
Although microeconomic studies find a positive relationship between R&D and skill premia, much of the recent rise in U.S. wage inequality was accompanied by slowing labor-productivity growth and relatively slow introduction of new technologies. These conflicting observations are consistent with the effects of a skewed distribution of “absorptive capacities”—the rate at which technology-specific skills can be acquired—in a model of endogenous technological change. The framework is used to assess whether the productivity slowdown and the rise in wage inequality can be jointly accounted for by the contemporaneous decline in the growth rate of labor quality.