Isaac William Martin is the author of The Permanent Tax Revolt (2008), which won the President's Book Award from the Social Science History Association, and he is the co-editor of After the Tax Revolt: California's Proposition 13 Turns 30 (2009). He teaches sociology and urban studies at the University of California at San Diego. Ajay K. Mehrotra is a professor of law and history at Indiana University Maurer School of Law in Bloomington, IN, USA. Monica Prasad teaches in the Department of Sociology at Northwestern University. She is the author of The Politics of Free Markets (2006), which won the 2007 Barrington Moore Award. Her current projects include research on the origins of progressive taxation in America; a comparative study of tax progressivity (with Yingying Deng); and a comparative historical investigation of carbon taxes.