The large inflow of less-educated immigrants that the United States has received in recent decades can worsen or improve U.S. natives' labor market opportunities. Although there is a general consensus that low-skilled immigrants tend to hold "worse" jobs than U.S. natives, the impact of...

In the debate over immigration reform, it is frequently asserted that immigrants take jobs that U.S. natives do not want. Using data from the 2000 Census merged with O*NET data on occupation characteristics, I show that the jobs held by immigrants are more physically arduous than the jobs held...