Jo works at the San Francisco office of The Brattle Group, an economic consulting firm, where she specializes in complex litigation with a focus on the health care and pharmaceutical industries. In her casework, Jo has testified in federal court as a summary witness in a class action lawsuit alleging wrongful denials of mental health & substance use disorder claims, and she has supported experts on various cases concerning fraud, anticompetitive behavior, and patent infringement. She has a Ph.D. in Economics from Princeton University, where she shared an office with Dean and Mike, and B.S. in Economics from MIT. At Princeton, Jo studied community effects of global health interventions, and two chapters of her dissertation analyzed the effects of scaling up antiretroviral therapy on maternal and child health services and on child schooling in sub-Saharan Africa.