Source: Richard McGregory, James Peoples, Journal of Labor Research, December 2012
From the abstract:
This study tests the union skill homogeneity hypothesis by examining whether the erosion of foreign-domestic wage differentials reported in past studies varies by union status. We argue that the common practice of unions negotiating standardized wages promotes skill homogeneity that allows high credential-low unmeasured skill foreign nurses the opportunity to receive wages that match high credential domestic nurses without foreign nurses relying heavily on their labor mobility. Findings show returns to domestic experience accrue faster for foreign nurses belonging to a union compared to returns for non-union foreign nurses. In general, findings on pension coverage indicate foreign nurses also benefit from belonging to a union, while findings on employer sponsored health care benefits indicate a lack of any notable differences in the receipt of this compensation by foreign and union status.