Using both time-series and pooled cross-section, time-series data for 44 industries over the period 1947-1997 in the United States, no evidence is found to support the idea that the growth of skills or educational attainment had any statistically significant effect on growth of earnings. On the...

"I speculate that technological spillover effects may have become more important over time as IT penetrated the U.S. economy. The rationale is that IT may speed up the process of knowledge transfer and make these knowledge spillovers more effective. Using US input-output tables for years 1958,...