The Divferentiation of Occupations*

*This is a revised version of a ~a~er prepared for presentation at tP,E; August 1975 meeting of the American Sociological Association, San Francisco. During the preparation of this paper the authors were supported by a National Institute of General Medical Sciences' Training Program in Methodology and Statistics (5-T01-GMOI526-09). The research reported here was supported in part by funds granted to the Institute for Research on Poverty at the University of WisconsinMadison by the Department of Health, Education, and Welfare pursuant to the Economic Opportunity Act of 1964. We wish to acknowledge the helpful comments of Robert M. Hauser, Alexander M. Hicks, Anthony Giddens, and Hal1iman H. Winsborough on earlier drafts of this paper.