This paper investigates whether the ethnic skill differentials introduced into the United States by the inflow of very dissimilar immigrant groups during the Great Migration of 1880-1910 have disappeared during the past century. An analysis of the 1910, 1940, and 1980 Censuses and the General...

Public education is one of the largest components of the public sector in Colombia, in term of its size, share of public expenditures, and geographic coverage. In 1997, Colombia had 85 thousand educational establishments, 390 thousand teachers, and 8.6 million students. In addition, public...

The employment rate of native-born men falls at a much faster rate than that of immigrants as the two groups approach the age of retirement. The author draws on U.S. Census data from 1960–2000 to examine how the eligibility requirements for Social Security benefits affect immigrants'...

This paper investigates whether the ethnic skill differentials introduced into the United States by the inflow of very dissimilar immigrant groups during the Great Migration of 1880–1910 have disappeared during the past century. An analysis of the 1910, 1940, and 1980 Censuses and the...

It has been difficult to open up the black box of knowledge production. We use unique international data on the publications, citations, and affiliations of mathematicians to examine the impact of a large, post-1992 influx of Soviet mathematicians on the productivity of their U.S. counterparts....