Changes in U.S. Wages, 1976–2000: Ongoing Skill Bias or Major Technological Change?
发现1976-2000年美国工资水平和技能回报的变化主要由人力资本与物质资本比率驱动，符合重大技术变革后的技术采用模型，而非持续的技能偏向型技术进步。
This article examines the determinants of changes in the U.S. wage structure from 1976 to 2000. Our main empirical observation is that changes in both the level of wages and the returns to skill over this period were primarily driven by changes in the ratio of human capital to physical capital. We show that this pattern conforms extremely well to a simple model of technological adoption following a major change in technological opportunities. In contrast, we do not find much empirical support for the view that ongoing (factor-augmenting) skill-biased technological progress has been an important driving force over this period.