Victor Moberger is Associate Professor of Philosophy at the Department of Historical, Philosophical and Religious Studies at Umeå University. He specializes in metaethics and has published several articles relating to the work of J. L. Mackie and the debate between moral realism and anti-realism.Jonas Olson is Professor of Practical Philosophy at Stockholm University. He is the author of Moral Error Theory: History, Critique, Defence (OUP, 2014) and of several articles on metaethics and the history of moral philosophy. He is co-editor of The Oxford Handbook of Value Theory (OUP, 2015).

• Editors' Introduction Theories of Justice and Rights I: Preliminaries II: Sketch of My Own Position III: Rawls's Theory of Justice IV: Nozick's Minimal State Appendix 1. Can There Be a Right-Based Moral Theory? Appendix 2. Rights, Utility, and External Costs

Victor Moberger is Associate Professor of Philosophy at the Department of Historical, Philosophical and Religious Studies at Umeå University. He specializes in metaethics and has published several articles relating to the work of J. L. Mackie and the debate between moral realism and anti-realism.Jonas Olson is Professor of Practical Philosophy at Stockholm University. He is the author of Moral Error Theory: History, Critique, Defence (OUP, 2014) and of several articles on metaethics and the history of moral philosophy. He is co-editor of The Oxford Handbook of Value Theory (OUP, 2015).

• Editors' Introduction Theories of Justice and Rights I: Preliminaries II: Sketch of My Own Position III: Rawls's Theory of Justice IV: Nozick's Minimal State Appendix 1. Can There Be a Right-Based Moral Theory? Appendix 2. Rights, Utility, and External Costs

Victor Moberger is Associate Professor of Philosophy at the Department of Historical, Philosophical and Religious Studies at Umeå University. He specializes in metaethics and has published several articles relating to the work of J. L. Mackie and the debate between moral realism and anti-realism.Jonas Olson is Professor of Practical Philosophy at Stockholm University. He is the author of Moral Error Theory: History, Critique, Defence (OUP, 2014) and of several articles on metaethics and the history of moral philosophy. He is co-editor of The Oxford Handbook of Value Theory (OUP, 2015).

• Editors' Introduction Theories of Justice and Rights I: Preliminaries II: Sketch of My Own Position III: Rawls's Theory of Justice IV: Nozick's Minimal State Appendix 1. Can There Be a Right-Based Moral Theory? Appendix 2. Rights, Utility, and External Costs