The purpose of the study is to examine A. F. Shorrocks's 1971 conclusion in the light of post-1969 events, examining first, the relation between imports and employment; second, the changes in unemployment in the steel industry, both in steel producing centers and nationally; and third the role of capacity utilization. (Author)

The replica study finds that workers who chose to be retrained did not increase their earnings by this choice, either with or without the conventional controls. Additional controls used--measures of social-psychological traits and use of the State Employment Service--were found to be irrelevant to changes in earnings. (MW)

The study measures the significance of the health variable in a model explaining variations in labor supply. Results indicate that the disability variable substantially increases the explanatory power of the conventional model of labor supply, which otherwise overemphasizes education and family status. (Author/MW)