The document presents an analysis of the economic status of certain minority groups in the United States. The groups include Blacks, American Indians, Chicanos, Puerto Ricans, Cubans, Japanese, Chinese, and Filipinos. Specifically, the document examines differences in female labor supply, female occupational status, and male earnings among the groups. The document is presented in six chapters. Chapter I summarizes findings of the study. Findings indicated that only half of the very large differences in female labor supply can be explained by differences in group characteristics; effects of education vary greatly among the nine groups; immigrants earn far less than natives when they first arrive but their position improves rapidly during their own lifetime; and children of immigrants earn more than the children of natives. Chapter II presents brief descriptions of the minority groups based on the 1970 population census. Information is presented for each group on periods of immigration, educational attainment, marital status, family size, labor force participation rates, unemployment rates, median income, and occupational status. Chapter III analyzes female labor supply. Chapters IV and V compare occupational achievement among males and females in the ethnic groups. Findings indicated that low occupational achievement results from low quality of education and labor market discrimination. Chapter VI examines differences in annual male earnings among recent immigrants, earlier immigrants, second-generation workers, and natives. (DB)