Melinda Cooper is a Senior Research Fellow in the Department of Sociology and Social Policy at the University of Sydney. She is the author of Life as Surplus: Biotechnology and Capitalism in the Neoliberal Era.

Catherine Waldby is a Professorial Future Fellow in the Department of Sociology and Social Policy at the University of Sydney. She is coauthor, with Herbert Gottweis and Brian Salter, of The Global Politics of Human Embryonic Stem Cell Science: Regenerative Medicine in Transition and, with Robert Mitchell, of Tissue Economies: Blood, Organs, and Cell Lines in Late Capitalism, which is also published by Duke University Press.