A new report, "Changing Patterns in the Relative Economic Performance of Immigrants to Great Britain and the United States, 1980-2000," finds that the gap in earnings between U.S. born and immigrant workers increased significantly between 1980 and 2000. The paper uses data from the 1980, 1990, and 2000 Censuses to look at changes in the pace of the economic assimilation of immigrants. The executive summary states that the evidence suggested "that immigrants lagged farther behind US-born workers in 2000, than they had in the 1990 and 1980." The report found that in 2000, male immigrants earned 18.4 percent less per hour on average than U.S. born workers. For females, that figure was 10.7 percent less. This is a vast difference from 1980, when male and female immigrant workers earned an average of 9.3 and 3.4 percent less, respectively. As this Common Dreams article on the report points out, part of this growing gap is due to a decline in educational attainment among immigrants during the period. But really what it illustrates, overall, is the fact that wage growth has not kept pace with productivity over the last few decades. This is true of billions of wage earners, not just immigrants.