1. Are technology improvements contractionary?;Basu;American Economic Review,2006
2. The Bowker Annual, R.R. Bowker Company, New York, Various Years.
3. The response of hours to a technology shock: evidence based on direct measures of technology;Christiano,2004
4. Technology and Employment: Innovation and Growth in the U.S. Economy;Cyert,1987
5. Technology, employment, and the business cycle: do technology shocks explain aggregate fluctuations?;Gali;American Economic Review,1999