Dr. Brownell holds a Ph.D. in Sociology and an M.A. in Demography, both from UC Berkeley. Prior to joining CPI, Dr. Brownell was an Associate Social Scientist at the RAND Corporation, where he also maintains an adjunct affiliation while continuing his role as Principal Investigator on projects relating to the occupational health of immigrant farmworkers and to estimating immigration flows. Dr. Brownell has also been a visiting research fellow at the Center for U.S.-Mexican Studies and a guest scholar at the Center for Comparative Immigration Studies, both at UC San Diego. His past research has focused primarily on immigrants and immigration, with a particular focus on migration between Mexico and the United States. Past projects have addressed the factors related to Mexican immigrants’ wages in the United States and the role of U.S. policy in structuring immigrants’ labor market outcomes and decisions regarding migration and settlement. His research has also addressed health topics such as youth smoking and the measurement of childhood obesity.