Measuring the Early 2020s Immigration Surge
Abstract
Perhaps the biggest challenge for economic measurement during the last few years hasbeen quantifying the recent increase in immigration across the southern US border. Immi-
gration featured prominently in the presidential election of 2024, and recent news stories
have described the challenges encountered by several large cities as they tried to absorb new
immigrants. But although it was easy to sense that immigration had increased, it was much
harder to count the immigrants crossing the border and estimate how many of them had
started working here. Over time, however, the economic policy community came to realize
that the surge had a first-order effect on the US economy; by some accounts, immigration
doubled the trend rate of growth of labor supply in 2023 and 2024. This paper discusses Congressional Budget Office and Census Bureau estimates of the recent immigration surge, as well as implications of alternative estimates for measuring its labor-market implications.