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...

Using within-family variation from twins and siblings, I find that smokers earn approximately 16% less than nonsmokers. Possible explanations for this earning difference are addiction-related productivity declines and earning reductions from higher health insurance costs. To investigate further,...

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...

Using within-family variation from twins and siblings, I find that smokers earn approximately 16% less than nonsmokers. Possible explanations for this earning difference are addiction-related productivity declines and earning reductions from higher health insurance costs. To investigate further,...