Paulette Cha is a research fellow at PPIC, where her work focuses on the health of underserved populations, especially children and immigrants. Her research has been published in peer-reviewed outlets including the American Journal of Public Health and the Journal of Adolescent Health, and she has been cited in numerous media outlets such as the Sacramento Bee and the Orange County Register. Before joining PPIC, she was a joint postdoctoral fellow at UCLA and the University of Southern California, and she has past experience evaluating social policy interventions in health and education for low-income individuals. She holds a PhD in health policy/health economics from the University of California, Berkeley.

Hans Johnson is a senior fellow at the PPIC Higher Education Center and a member of the PPIC Economic Policy Center. His research focuses on improving college access and completion. He frequently presents his work to policymakers and higher education officials, and he serves as a technical advisor to many organizations seeking to improve college graduation rates, address workforce needs, and engage in long-term capacity planning. His other areas of expertise include international and domestic migration, housing in California, and population projections. Previously, he served as research director at PPIC. Before joining PPIC, he worked as a demographer at the California Research Bureau and at the California Department of Finance. He holds a PhD in demography and a master’s degree in biostatistics from the University of California, Berkeley.