On this episode of the Matrix Podcast, Julia Sizek spoke with two scholars whose work focuses on explaining how mass incarceration has changed over the last 30 years. Alex Roehrkasse is an Assistant Professor of Sociology and Criminology at Butler University. He studies the production of racial class and gender inequality in the United States through violence and social control. He was previously a postdoctoral associate in the Department of Sociology at Duke University and at the National Data Archive on Child Abuse and Neglect at Cornell University. Christopher Muller is Assistant Professor of Sociology at the University of California, Berkeley. He studies the political economy of incarceration in the United States from Reconstruction to the present. He is particularly interested in how agricultural labor markets, migration, and struggles over land and labor have affected incarceration and racial and class inequality in incarceration. His work has been published in journals such as the American Journal of Sociology, Demography, Social Forces, and Science.