Immigration and United States Economic Growth

Immigration policy is one of the most hotly contested political issues in the United States. In this paper, we evaluate the role of immigration in the U.S. economy. We pose the counterfactual question, “what would happen if net migration to the U.S. were to cease?” Using the REMI PI+ macroeconomic policy analysis model, we set to zero international immigration from 2018 to 2060, and estimate the national- and state-level economic and demographic implications of this change. Our estimates show that, in the absence of immigration, total U.S. employment would peak in 2019, and the U.S. GDP and labor force would decline by 20% through 2060. Per capita income and GDP effects, however, are relatively minor and sensitive to assumptions in labor and capital markets.