New research shows immigrants do not increase the
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How does immigration increase productivity?
Second, immigrants increase total factor productivity. These productivity gains may arise because of the more efficient allocation of skills to tasks, as immigrants are allocated to manual-intensive jobs, promoting competition and pushing natives to perform communication-intensive tasks more efficiently.
Specifically, the study found that a 1 percent increase in immigrant employment per state leads to a 0.5 percent increase in income per worker. ... Approximately 90 percent of the U.S.-born labor force gained from immigration, while the individuals whose wages were most negatively affected were previous immigrants.