This paper investigates the shift in demand towards skilled labor in U.S. manufacturing. Between 1979 and 1989. employment of production workers in manufacturing dropped by 2.2 mil1ion or 15 percent while employment of non-production workers rose by 3 percent. A decomposition of changing...

This paper investigates the shift in demand towards skilled labor in U.S. manufacturing. Between 1979 and 1989. employment of production workers in manufacturing dropped by 2.2 mil1ion or 15 percent while employment of non-production workers rose by 3 percent. A decomposition of changing...

This survey reviews the growing use of patent data in economic analysis. After describing some of the main characteristics of patents and patent data, it focuses on the use of patents as an indicator of technological change. Cross-sectional and time-series studies of the relationship of patents...