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English language proficiency, a relatively new variable which has not been well specified in recent studies, is used to explain differences in earnings among foreign-born men based on the 1976 Survey of Income and Education. Taking into account the standard human capital and personal characteristics, English language proficiency is found to have significant positive influence on earnings for all ethnic groups. In particular, the earnings of foreign-born Hispanic and Asian men relative to foreign-born men of European ethnicity are most affected by English language proficiency.
Evelina Tainer (Fri,) studied this question.