1. Skills, Tasks and Technologies: Implications for Employment and Earnings;Daron Acemoglu;Handbook of Labor Economics,2011
2. Productivity Differences;Fabrizio Zilbotti;Quarterly Journal of Economics,2001
3. Polarization and Rising Wage Inequality: Comparing the U.S. and Germany
4. The Skill Content of Recent Technological Change: An Empirical Exploration;David H Autor;Quarterly journal of economics,2003
5. The Polarization of the U.S. Labor Market;David H Autor;Trends in U.S. Wage Inequality: Revising the Revisionists,2006