1. 1. Abernathy, William J. , James J. Harbor , and Jay M. Menn , Productivity and Comparative Cost Advantages: Some Estimates for Major Automotive Producers. a mimeographed -.report to the Department of Transportation, February 1981.
2. Labor Cost and U.S. Comparative Advantage in Steel and Motor Vehicles;Anderson;The World Economy,1981
3. 3. Hufbauer, Gary, ed., U.S. International Economic Policy 1981, Georgetown University International Law Institute, April 1982, Chapter 3.