Tasha Fairfield is Associate Professor in the Department of International Development at the London School of Economics. She holds a Ph.D. in political science from the University of California, Berkeley, along with an M.A. in Latin American Studies and an M.S. in physics from Stanford University. Her first book, Private Wealth and Public Revenue in Latin America: Business Power and Tax Politics (CUP 2015), won the Donna Lee Van Cott Award. Her methodology articles include “Explicit Bayesian Analysis for Process Tracing” (Political Analysis 2017, with A.E. Charman), which won the American Political Science Association’s Qualitative and Multi Method Research Sage Best Paper Award. She was a 2017-18 Mellon Foundation Fellow at the Center for Advanced Study in Behavioral Sciences at Stanford University. Her book (with A.E. Charman), Social Inquiry and Bayesian Inference: Rethinking Qualitative Research, is forthcoming with Cambridge University Press.