Jose Pacas

Research Scientist

IPUMS Data Projects

Research Interests and Project Expertise

Poverty; labor; immigration


I began working at the MPC as a research assistant between 2012 and 2015. After a couple of years as an economist for the Poverty Statistics Branch at the US Census Bureau, I returned as full-time research staff in 2017. I focus primarily on the IPUMS USA project while also helping on the IPUMS CPS project. My research has focused on using Census data to study labor markets, poverty, immigration and racial/ethnic disparities. Current research projects focus on the factors influencing poverty transitions and the net fiscal impact of labor unions. Prior work has varied from estimating the population of undocumented immigrants in the US to a historical profile of the biomedical labor force.

Selected Publications

Heggeness, M., Gunsalus, K., Pacas, J., & McDowell, G. (2017). "The New Face of US Science." Nature, 541(7635), 21-23.

Flood, S. M., & Pacas, J. D. (2017). "Using the Annual Social and Economic Supplement as Part of a Current Population Survey Panel." Journal of Economic and Social Measurement, 42(3-4), 225-248.

Sojourner, A., & Pacas, J. (2019). "The Relationship Between Union Membership and Net Fiscal Impact." Industrial Relations: A Journal of Economy and Society, 58(1), 86-107.