The Supply of Skill and Endogenous Technical Change: Evidence from a College Expansion Reform
利用挪威1970年代新建大学导致技能劳动力外生增加，发现技能工资上升，表明需求也增加；大学开设提升了技能劳动生产率和研发投资，支持内生技术变革模型。
Abstract We examine the labor market consequences of an exogenous increase in the supply of skilled labor in several municipalities in Norway, resulting from the construction of new colleges in the 1970s. We find that skilled wages increased as a response, suggesting that along with an increase in the supply there was also an increase in demand for skill. We also show that college openings led to an increase in the productivity of skilled labor and investments in R&D. Our findings are consistent with models of endogenous technical change where an abundance of skilled workers may encourage firms to adopt skill-complementary technologies.