John O'Neill is professor of philosophy at Lancaster University, England. He works on social and environmental philosophy, and the philosophy of science. He has developed a rigorous critique of the intellectual case for the market, and defends an associational socialism inspired by ''' Otto Neurath ''', in which economic planning is decentralised internationally across overlapping workers' associations. His most recent book is ''The Market: Ethics, Knowledge and Politics'', Routledge 1998.