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."