Matt Matravers is Professor of Political Philosophy at the University of York. He is the author of Justice and Punishment (Oxford University Press, 2000) and Responsibility and Justice (Polity Press, 2007) as well as of numerous articles and chapters on political and legal philosophy.

Lukas H. Meyer is Professor of Practical Philosophy, University of Berne. He is the author of Historische Gerechtigkeit (de Gruyter, 2005), editor of Intergenerational Justice (Oxford University Press, 2009) and Legitimacy, Justice and Public International Law (Cambridge University Press, 2009), as well as of numerous articles and chapters on political and legal philosophy.