The authors conduct tests to gain insight into the empirical relevance of the proposition that factor prices converge as trade expands. The test results support the proposition of factor price convergence in sixteen OECD countries during the 1961-84 period. Regression analyses support the view that trade openness has been the most significant factor influencing wage variations. This paper also distinguishes between "high wage" and "low wage" countries. Pooled ordinary least squares estimates indicate that Canada, the United States, Denmark, West Germany, the Netherlands, and Sweden are "high wage" and Japan, New Zealand, Austria, Belgium, Finland, France, Ireland, Norway, Switzerland, and the United Kingdom are "low wage" countries. Further results using the Within estimations technique are provided. Copyright 1989 by MIT Press.