Michael Ash is professor of economics and public policy at the University of Massachusetts Amherst. With colleague James K. Boyce, Ash co-directs the Corporate Toxics Information Project of the Political Economy Research Institute, which publishes the Toxic 100 index identifying top US polluters. Their current research uses data from US EPA and US EEOC to assess the trade-off between pollution exposure and employment opportunities with particular attention to the exposure and employment of racial and ethnic minorities. Ash served as staff labor economist for the President's Council of Economic Advisers in 1995-1996 and as Princeton Project 55 Fellow for the Trenton Office of Policy Studies (NJ) in 1991-1992