The indexes reflect economic utilization of labor for each county in the Nation at one point in time, 1970, for the rural and urban population, by sex and race. These indexes are the ratio of a group's actual median income to its warranted earning capacity. The warranted earning capacity is an expected income measure for a population group in a county (given the characteristics of age, education, work experience, labor force participation, and occupational distribution of the workers) compared with a national level population group with the same characteristics. In addition to the indexes of economic utilization, the report contains indexes of characteristics influencing earning capacity (age, educational attainment, work experience, employment status, labor force status, and occupational structure); data on employment, industry, occupation, and per capita income; and purchasing power adjustment factors.
