[This paper investigates whether or not the multiproduct-multifactor analogues of the factor proportions and the Rybczynski theorems receive empirical support. They are analyzed with reference to the Swedish engineering trade pattern in 1960-70. A major change in this pattern is shown to be related to three factor intensities. The results seem encouraging for the modern factor proportions theory in two respects. First, they are broadly consistent with comparative static models of factor accumulation. Second, the relative differences in the factor intensities of engineering subindustries are shown to be stable in the long run.]

This paper investigates whether or not the multiproduct-multifactor analogues of the factor proportions and the Rybczynski theorems receive empirical support. They are analyzed with reference to the Swedish engineering trade pattern in 1960-70. A major change in this pattern is shown to be related to three factor intensities. The results seem encouraging for the modern factor proportions theory in two respects. First, they are broadly consistent with comparative static models of factor accumulation. Second, the relative differences in the factor intensities of engineering subindustries are shown to be stable in the long run.